Have replaced the spark plugs, coil, plug wires. Yep, that misfire is most likely from the fuel vaporizing inside the #3 injector caused by heat from the exhaust header collecting in that area. P0300 Random/Multiple Cylinder. Typically, fuel mileage will suffer as well. 2008 Toyota Prius cylinder 2 misfire About every 6 months Cylinder #2 misfires, causing codes and the check engine light to come on. Driving with a misfire can damage that catalytic converter, and raw fuel will pass through the cylinder into the exhaust. Speed is generally 77 or 78 kmh when this happens. Had the bro-in-law hook it up to VCDS (and I'm trying to see if he still has the code), but basically I had a misfire in cylinder #5. Start by checking for intake leaks, intake gaskets are commonly caused of multi-cylinder misfiring. The average cost for a Toyota Prius ignition coil replacement is between $572 and $871. Moments later, the vehicle restarted, but the warning indicator remained illuminated. He has had to put in a new battery (battery died as soon as i arrived at the shop). These can be checked by swapping the ignition coils to different cylinders to determine if the misfire moves. Fixing P0301 should be a high priority. 2 weeks ago I was driving down the highway when Noticed misfiring, loss of power and a flashing check engine light. ” After we scanned the vehicle, we found the following DTCs: P0305, misfire on cylinder #5; and P0301, misfire on cylinder #1. 7L 4runner with 151k miles. The fix for that is to wrap a piece of insulation around the #3 injector and zip tie it into place which fixed my #3 misfire. 7 V6, auto, 2 wheel drive. The car is now for a full service but i highly doubt that would fix the problem. The van ran like a 2 cylinder turtle up the hill. I am having a similar problem Multi cylinder misfire on an 05 MDX and in my case P0300, P0305, P0306, and P0304 codes come up, my engine however does run rough but only at idle other than that car drives great no power loss, my buddy who is a licenced mechanic hooded up his computer and it seems that those cylinders are constantly misfiring, we tested the coils and there seems to be a good. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. This is true of most vehicles of that era. 0 Auto 2007 JKU LS3, PR60s, too much to list 2012 JKUR bone stock 2018 Tacoma TRD Off-Road. It's my understanding that that code usual indicates a air leak somewhere, but I tested for that by spraying around the intake and didnt notice any change in idle. Toyota Prius Engine Problems. —in order to isolate the root cause of the misfire. 4500 miles, and had the P0300 Cylinder misfire code 2 times now. This is the same side that is mentioned in the Chrysler recall for cylinder head replacement, and it's the same cylinder head that was replaced at 28,000 miles. The problem is to find out which coil (s) is the bad one, most Nissan vehicle owner replaced all six coils at the same time. In many instances, stalling ends up being an idle control motor at its limit or a failed motor. Changed plugs - same code, swapped coil 1 with 4 - same code, swapped injector 1 with 4 - same code. Yesterday on the way to work my 2000 Chevrolet Silverado 1500 4WD with the 4. Ive changed the plugs wires cap. While operating the vehicle, the ¿check hybrid system¿ warning indicator displayed and the vehicle stalled. I already checked everything from coils, plugs, to even doing a compression test along with seafoam to fuel system cleaning. About 1 in 5 times that the engine turns on it misfires so bad that it sounds like the engine is blown and about to die. Right now, it starts up fine, idles fine, drives well for a few miles then starts misfiring. Simultaneous misfiring of several cylinders detected (2 trip detection logic) Misfiring of specific cylinder detected (2 trip. The 2010 Toyota Prius has 2 problems reported for engine hesitation. However, the problem is still there. Yep, that misfire is most likely from the fuel vaporizing inside the #3 injector caused by heat from the exhaust header collecting in that area. The car would barely run so I replaced the plugs with oem ngks. A P0302 code, for example, would tell you cylinder number two is misfiring. and this is what comes up 1. Cylinder 5 misfire code description is below as well as multiple cylinder misfire. I have a 2010 dodge nitro that is showing the code for cylinder 6 misfire as well. I have a jetta 2. Presence of oil could cause the coil to foul and misfire. A week later I am now getting a misfire in cylinder 5. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why. 1322 Engine Misfire for Multiple 1323 Engine Misfire Cylinder #1 Engine misfire detected in cylinder 7. I stopped at advance auto and they wrote down the codes for me. P0300 is for multiple cylinder misfire and is likely due to usage of non-OEM plugs. If the misfire moved to cylinder number 4 (P0304), then you have determined that the coil pack is faulty and needs replacement. I need some help!I have a 2009 Chevy Hybrid, 6. 2007 prius base. The engine control unit can detect a misfire in some different ways, depending on what car model and engine you have. 3 - Clue Hi, Thanks bbottomley and subaru4me77 for your respective reply. Hi all, Need help for a 2009 LT1 traverse-I was getting a misfire in cylinder 3 so I changed coil and spark plug and the issue jumped to cylinder 4. Cylinder 2 Misfire / P0302 on a 2007 JK I rolled down my window and the sound was definitely not right. I had the plugs changed at 50K as recommended. Cadillac cts misfire cylinder 6 causes 2010 Chevy Traverse Water Location of Ignition Coil On a Lt1 help finding causes for random multiple cylinder misfire. used motorcraft. Driving with cylinder misfire can be dangerous, as you can potentially get into a car accident if the car stalls or loses power as a result of cylinder misfire. I'm getting code P0307 and P0316 (cylinder 7 misfire). so i changed the injectors used bosh gen 3 not the exact injectors for the truck but i dont think there hurting it think there for a mustang bullet with same motor 4. When the truck is under load (going up a hill etc. When we hook it up to the computer, my car starts and runs fine for about 3 seconds, then cylinder 1 starts misfiring, then 3, then 5, then 7, in that order. It would start sometimes, and misfire the whole time I drove it, other times, I could drive it just fine. What to do? Reduced gas mileage and misfire on cylinder 4 causing shaking on acceleration. Follow-up: Random/Multiple Cylinder Misfire Also have the occasional rough/surging idle and hesitation when pulling off in the morning. The misfire was in the same cylinder beofre and after I replaced all of the basic parts. With that said, the misfire detection strategy programmed into specific engine management systems will vary widely among vehicle models, model years and manufacturers. —in order to isolate the root cause of the misfire. i have a misfire on cylinder 4 of my 2001 buick century. A misfire after a 'hot soak' and the clearing up of the misfire after bringing the revs up, may have been a fuel-flooded cylinder from a stuck, leaking fuel injector? This could be intermittent. I need some help!I have a 2009 Chevy Hybrid, 6. Another Prius with misfire problem My Prius had the check engine light come on - and it had set 5 codes: each cylinder misfire, plus random cylinder misfire. 0L V8 engine, about 150,000 KM on it. The P0302 Toyota code means that the cylinder 2 is misfiring or is randomly misfiring. Checked battery grounds. The 2010 Toyota Prius has 2 problems reported for engine hesitation. This Prius came in making a loud rattle when the ICE started warm. Thanks! It is indeed OBD2behind the coin/ash try thing. Chances are it wil go away completely just from messing with it. However, I then installed Carista OBD2 and was able to pull the fault codes P0300(Multiple cylinder misfire detected) P0301(Cylinder one misfire) P0302 (cylinder two misfire). Good Morning Gentleman. Exterior; Chrome front and rear bumpers; Conventional lens halogen bulb headlights; Courtesy lights; Metallic paint , black paint , gloss paint; Rear platform step; Heating, Venti. P0302 is a cylinder specific misfire code, which means that cylinder 2 is misfiring and causing the code. thanks: October 18, 2010. I bought it a few months back and haven't had any problems with it until now. This is a innovative system design by Toyota that has dramatically helped reduce the number of accidents by assisting drivers in controlling lateral skidding. First, if you're getting a P0300 Random/Multiple Cylinder Misfire Detected code, that would indicate a universal problem that applies to all. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why. P0300, P0301, P0302, P0303, P0304. I went ahead and cleared the codes to reset CEL. We would get the MIL and the code was P0303 - Misfire detected Cylinder #3. - do you fall into this category?. That was the code I was looking for! I could now focus my attention on finding the cause of the #1 misfire. A P0302 code, for example, would tell you cylinder number two is misfiring. , move cylinder 2 plugs to say cylinder 3 and if the misfire is now P0303 then the plugs are at fault. To see how frequently 2010 Toyota Prius problems occur, check out our car reliability stats. Peter Finn the Car Doctor 325,116 views. Then the trouble codes spread to 1,3,5,7 all on driver side then later I read the codes and it was all 8 cylinder specific and the random as well. It appears that the real culprit is the direct injection of gas into the cylinder so the. Fixing P0301 should be a high priority. Labor costs are estimated between $104 and $132 while parts are priced between $468 and $739. Toyota is closely monitoring breakdowns in the electrical power system of some Prius models, as failures continue to mount across the nation despite a 2014 safety recall that was supposed to fix the problem, according to Toyota documents reviewed by The Times. This ignition coil pack sits on top of the valve cover. 2L V6 engine and 120,000 miles. PO300 Random/multiple cylinders misfiring. Edit: After seeking advice in Hyundai subreddit, I tried the free Torque app instead of Torque Pro and it wasn't able to find any fault codes logged in the ECU either. I already checked everything from coils, plugs, to even doing a compression test along with seafoam to fuel system cleaning. Something else to look at in the spark burn line is the amount of "hash" it contains. check the connector to the coil for corrosion and make sure no wires have rubbed threw. Although generic, the specific repair steps may vary depending on make/model. Anyway, getting back to the Neon with the misfire -as you can see in the photo, this car has an ignition coil pack that feeds spark to the different cylinders from one assembly, as opposed to having an ignition coil sitting on top of each individual cylinder or a distributor. Seems like to much of a coincidence to be. PO303 cylinder 3 misfire has been a chronic problem since then. P0300 is a diagnostic trouble code (DTC) for "Random/Multiple Cylinder Misfire Detected". 03 VW Passat with multiple random cylinder misfire. to put it into context it commonly happens between about 50k and 70k (miles) on the engine. 6 sohc started misfiring. Vacuum Leak. To see how frequently Toyota Prius problems occur, check out our car reliability stats. Its my wife's car, so I didn't hear anything leading up to it or anything, she just called me and said the CEL came on and wanted me to fix it lol. 0L, 135,000 miles. Got back to the house and plugged into the computer and pulled P0300 - Random / Multiple Cylinder Misfires. P0303 2008 Toyota Prius Description When a misfire occurs, engine speed will fluctuate. 2 weeks ago I was driving down the highway when Noticed misfiring, loss of power and a flashing check engine light. A P0302 code, for example, would tell you cylinder number two is misfiring. A shop diagnosed it as "multiple cylinders misfire. Toyota Prius P0301 Definition. With that said, the misfire detection strategy programmed into specific engine management systems will vary widely among vehicle models, model years and manufacturers. It sounded AWEFUL. they have a call in to DODGE Tech Line and they are supposed to get back w/ dealer in the morning. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. 2002 V70 XC Misfire at Idle If this is your first visit, be sure to check out the FAQ by clicking the link above. The car starts fine. I bought it a few months back and haven't had any problems with it until now. I'm getting code P0307 and P0316 (cylinder 7 misfire). Check Engine Light Code P0300 Random/Multiple Cylinder Misfire Detected. Hi All, Quick question. P0305-CYLINDER 5 MISFIRE For a complete wiring diagram, refer to the Wiring Information. See Photo 1. Any advice of what to do to tell if it is the coil?. (I know this because it is throwing code p1312). Toyota Prius P0301 Definition. After reading around I swapped the ignition coils in cylinder 2 and 1 and the misfiring shifted to cylinder 2 instead (fault code P0302). To see how frequently Toyota Prius problems occur, check out our car reliability stats. If battery voltage exists and a COP assembly is suspected of causing an intermittent cylinder misfire, the quickest diagnostic procedure is to switch the coil from cylinder to cylinder. I took it in to a local mechanic, who said it was just the plugs which I replaced as it just passed the 100K mark. I know this has been discussed alot but here is my story. Driving with cylinder misfire can be dangerous, as you can potentially get into a car accident if the car stalls or loses power as a result of cylinder misfire. The valve sealed itself again after the engine cooled. Anything outside that range and the misfire went away. 09 wrx misfire cyl 4, 13 subaru wrx random multiple misfire, 13 wrx cylinder bypass, 13 wrx random misfire on all cylinders, 2013 subaru sti misfire, 2013 wrx p0300, 2013 wtx p0300, 2015 wrx misfire, random misfire on 2013 wrx, subaru bugeye misfire, subaru wrxmisfire issues 2010, wrx poping at idle. The number one cylinder is on the right side bank of cylinders (firewall side) and it at the front of the engine by the serpentine belt. 4500 miles, and had the P0300 Cylinder misfire code 2 times now. These can be checked by swapping the ignition coils to different cylinders to determine if the misfire moves. I am still getting cylinder misfires (every time I read the codes, it is a different set of cylinders), multiple misfires and random misfires. 7L with 139k miles on it. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. In fact, cylinder misfires are one of the most common causes of emission failures on cars nowadays. Description: How does a P0300 code trigger the check engine light? This code will trigger the check engine light as follows: The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. I went ahead and cleared the codes to reset CEL. Exterior; Chrome front and rear bumpers; Conventional lens halogen bulb headlights; Courtesy lights; Metallic paint , black paint , gloss paint; Rear platform step; Heating, Venti. The cause is often a problem in the idle air control system. Seems like to much of a coincidence to be. 'Pulled the engine and checked everything. I don't have the tools or experience to check the valves or vaccuum. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why. The code says cylinder 5 misfire detected and the car shakes badly on iddle. P0300 means random misfires in multiple engine cylinders. It uses a paper cartridge oil filter. In many instances, stalling ends up being an idle control motor at its limit or a failed motor. 09 wrx misfire cyl 4, 13 subaru wrx random multiple misfire, 13 wrx cylinder bypass, 13 wrx random misfire on all cylinders, 2013 subaru sti misfire, 2013 wrx p0300, 2013 wtx p0300, 2015 wrx misfire, random misfire on 2013 wrx, subaru bugeye misfire, subaru wrxmisfire issues 2010, wrx poping at idle. Re: misfire on cylinder 3 smart for2 it's a common fault for the valve guide oil seals to fail, so you maybe experiencing this. The last digit of the code P030X stands for the misfiring cylinder number. The cause is often a problem in the idle air control system. All internal engine parts including: pistons, piston rings, piston pins, crankshaft and main bearings, connecting rods and rod bearings, camshaft and camshaft bearings, timing chain and timing gears, intake and exhaust valves, valve springs, oil pump, push rods, rocker arms and shafts. and it will cause misfire and shudder etc. 0 Turbo 2017 FK6 Apparently 3 days ago on my way to work, I got flashing Check Engine Light (CEL) and car started stalling a bit. These can be checked by swapping the ignition coils to different cylinders to determine if the misfire moves. We thought that might take care of the check engine light but it came on again so we Changed the spark plugs. The faults for bad ignition coils could be misfires on a single or multiple cylinders with possible fault codes being P0300, P0301(for cylinder 1), P0302(for cylinder 2) , P0303(for cylinder 3), P0304(for cylinder 4). I also use only 91 octane or higher fuel in the car, but have tried multiple grades to see if the condition would change but it did not. Sometimes simple = complex. 03 VW Passat with multiple random cylinder misfire. During this condition, the ECM monitors the CKP sensor signal every 1,000 engine revolutions. The number one cylinder is on the right side bank of cylinders (firewall side) and it at the front of the engine by the serpentine belt. 2010 challenger RT, 6 speed, only mod is SOLO mach X exhaust. Labor costs are estimated between $104 and $132 while parts are priced between $468 and $739. My mechanic says it reads cylinder mis-fire. It is unlikely that you have damaged the engine itself, although you do need to get it running properly again. Something else to look at in the spark burn line is the amount of “hash” it contains. 7 liter tundra with 208,xxx miles. I also use only 91 octane or higher fuel in the car, but have tried multiple grades to see if the condition would change but it did not. P0305-CYLINDER 5 MISFIRE For a complete wiring diagram, refer to the Wiring Information. 09 wrx misfire cyl 4, 13 subaru wrx random multiple misfire, 13 wrx cylinder bypass, 13 wrx random misfire on all cylinders, 2013 subaru sti misfire, 2013 wrx p0300, 2013 wtx p0300, 2015 wrx misfire, random misfire on 2013 wrx, subaru bugeye misfire, subaru wrxmisfire issues 2010, wrx poping at idle. 01-28-2010, 08. I have had this problem since I bought the car 2 years ago and have yet to find a remedy for it. JDM Toyota Prius Engine 2010-2015 2ZR-FXE Hybrid. No codes came up, other than a hard misfire in cylinder 2. Possible causes of OBD code P0303 Toyota A code P0303 Toyota may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter(s) Running out of fuel Poor compression Defective computer. These can be checked by swapping the ignition coils to different cylinders to determine if the misfire moves. D2 V8 I changed the spark plugs over yesterday and Hawkeye is telling me there is a misfire in cylinder 3. 2010 Toyota Prius Repair Histories. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. anyone else seeing this problem? had it to the dealer 2 times and they cant come up w/ a reason for it. I also been getting the multiple cylinder misfire code along with cylinder 2 and 5. Toyota VSC light. I was once again pulling the random cylinder misfire code, and dug around until I found the record of the number of misfires. I got it checked and: P0108 MAP/BARO circuit high input 300 random/multiple cylinder misfire 303 cylinder 3 misfire. It sounded AWEFUL. We then switched the VVT solenoids and the fault has followed it over on to cylinder 6. So then I changed the fuel injector for that cylinder 1. All the low compression motors I've worked on before had white smoke at idle or cold but it always changed to black smoke/high egts at full throttle. I've read about two possibilities: bad gas and bad coil. Here’s a quick explanation of how a pro would attack the problem. I am still getting cylinder misfires (every time I read the codes, it is a different set of cylinders), multiple misfires and random misfires. I have a 2001 Toyota Rav4 and I am getting a misfire code for cylinder 4. It's been replaced and replaced and replaced, and it's getting pricey. relatively cheap part, just sucks getting to it if i remember correctly. You can do the same test with the spark plug, i. If your fuel/air mix isn't well balanced, meaning that too much or too little air is getting into the engine, you might see the same result. Follow-up: Random/Multiple Cylinder Misfire Also have the occasional rough/surging idle and hesitation when pulling off in the morning. Research the 2010 Toyota Prius I in Douglas, GA at Prince Ford, Inc. A few days back, its engine light came up suddenly. Car is misfiring. Took it on a long trip, ~300 miles, usually ran fine, and got 28 mpg hwy, but idled rough a couple times, nothing major, no more blinking CEL. Also, make sure you jot down the other codes, as misfire can be caused by a malfunctioning component or system. In that case, start by checking fuel supply issues like poor fuel pressure caused … Read More. You can do the same test with the spark plug, i. People ask me about misfire codes after they’ve replaced all the spark plug wires, coil, and plugs and they still have the code. Typically, fuel mileage will suffer as well. It still gets 40+ mpg, but it does knock at times. Have replaced the spark plugs, coil, plug wires. A code reader, available from parts stores, will permit you to jack into the engine-control unit (ECU) and get a dialog of what’s up, what’s wrong and where it’s happening. Abs For Sale. Remember also that a rough idle doesn’t always meet the criteria for storing a cylinder misfire code. Find Abs In Stock Now. I changed all for spark plugs and changed 2 coils. Engine Misfire or Rough Idle on GM 4. anyone else seeing this problem? had it to the dealer 2 times and they cant come up w/ a reason for it. The engine ECU stored the trouble codes (misfire #1 cylinder). Hi All, Quick question. If the misfire moved to cylinder number 4 (P0304), then you have determined that the coil pack is faulty and needs replacement. I cleared the codes and nothing has come back yet, but it is still misfiring and tapping loudly, the plugs are ok, but are covered in fuel. Still the same! So the only thing I can think of now is this reflash that dealers are fixing the misfire problem with. Toyota Prius Engine Problems. You have a choice of Platinum (NGK PLFR55A-11 @ $1 ea. to recap, about a month ago, I had a 1,2,3,4 misfire. Here is a hint. pulled the codes cylinder 7 misfire. but no change. If battery voltage exists and a COP assembly is suspected of causing an intermittent cylinder misfire, the quickest diagnostic procedure is to switch the coil from cylinder to cylinder. The 2010 Volkswagen CC has 3 problems reported for severe engine misfire. But smoke aside, cylinder 7 was at 350, all the others were right @ 380. Welcome to Mazdaspeed Forums. and compares per-cylinder rpm to a baseline. My mechanic says it reads cylinder mis-fire. Once the fuel injector is turned off, the cylinder is now basically an air pump, which reduces the potential for catalyst failure. 0L spark ignition engine (engine code: N43B20A) was reported to have been suffering from occasional rough running when starting and the engine management light was illuminating. 0L, 135,000 miles. Upon returning from the road trip, it was discovered that there was no oil in the vehicle and the number two head cylinder was burned out. One cylinder can misfire or more than one cylinder can Misfire depending on the situation. A P0300 diagnostic code indicates a random or multiple misfire. Well im having the same problem with my 07nnbs sierra just started doing the same thing last saturday but im getting a p0307 misfire and service stabilitrak-traction control i already did plugs and wires also swap coils from #5 to #7 still acting the same. It seems like a very common problem anyways, and this 'new' one Vauxhall fitted might have packed up an all so I'll just get her a new one to try it. Swapped them around afterwards, too. The EGR Valve was. P0305-CYLINDER 5 MISFIRE For a complete wiring diagram, refer to the Wiring Information. Research the 2010 Toyota Prius I in Douglas, GA at Prince Ford, Inc. My 2013 ram 1500 broke a valve spring on cylinder #5. It was more of a clicking noise overplaying my regular dynomax rumble. Vag-com showed fault codes P0300 (Random/Multiple Cylinder Misfire Detected ) and P0301 Cylinder 1 - Misfire Detected). But most modern cars are equipped with catalytic converters in the exhaust system, and you may have ruined the converter, which may cost. The misfire data will show which cylinder or cylinders are misfiring. Replaced plugs & wires, misfire still present. Also, checked the injector harness at the 10 pin connector (no insulation issues) and replaced crank sensor, camshaft sensor. I had my brother read the code, which stated I had a cylinder 2 misfire. Severe Engine Misfire. What is a Misfire Condition? What Causes a Misfire Condition?. It was flashing for misfire so I took it and had the code read at autozone, reading misfire cylinder 2. It uses a paper cartridge oil filter. The PCM tries to determine the cylinder that is misfiring by the sudden slowing of engine RPM and then guessing which cylinder it must have been due to crank sensor position. A week later I am now getting a misfire in cylinder 5. That was the code I was looking for! I could now focus my attention on finding the cause of the #1 misfire. Every few months or so, my CEL comes on when I cold start my car, and the scanner reads P0300 (random cylinder misfire) and one or all of the codes P0301-P0306 (Cylinder Misfire 1-6). —in order to isolate the root cause of the misfire. It's a "random multiple-cylinder misfire" code. About the only thing that made a difference is the fuel pressure regulator and thus I'd suspect a fuel system problem. 2010 challenger RT, 6 speed, only mod is SOLO mach X exhaust. 0 4X4 with 170K miles. If the Engine System has a Misfire Counter for specific cylinders on the Scan Tool Data Stream, pay very close attention to the cylinders(s) named in the misfire code(s). Prius, Prius Plug-in, Prius V engine rattle/misfire fix: no longer available? An updated blog about this issue is available here We see a lot of Prii in the shop, and one of the most common complaints we get from 2010+ Prii, Plug-in, and V owners is about the startup engine rattle after a cold soak. A specific cylinder can misfire or multiple cylinders can misfire. forgot to take the result home but that's the main problem at the moment. One cylinder can misfire or more than one cylinder can Misfire depending on the situation. The last digit of the code P030X stands for the misfiring cylinder number. Possible causes of OBD code P0302 Toyota A code P0302 Toyota may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter(s) Running out of fuel Poor compression Defective computer. About 1 in 5 times that the engine turns on it misfires so bad that it sounds like the engine is blown and about to die. hi all tech. Raw fuel is also passing through the cylinder into the exhaust. The car starts fine. Check Engine Light Code P0300 Random/Multiple Cylinder Misfire Detected. 7 liter tundra with 208,xxx miles. Vag-com showed fault codes P0300 (Random/Multiple Cylinder Misfire Detected ) and P0301 Cylinder 1 - Misfire Detected). JDM Toyota Prius Engine 2010-2015 2ZR-FXE Hybrid. after some time to ponder my life decisions, it started after some cranking, took to a autoparts. I went ahead and cleared the codes to reset CEL. Toyota Prius Brake Master Cylinder Replacement costs between $316 and $4912 on average. It's been a problem car for a while but i've fixed all it's glitches except this one. Any ideas?. PO300 - Random Multiple Cylinder Misfire PO303 - Cylinder 3 misfire detected PO308 - Cylinder 8 misfire detected The oil is incredibly dirty and was low when the vehicle came in. The previous technician replaced all the coils and plugs and ran a compression test. The cam lobe on exhaust #1 looked like garbage. Once inside the comfortable Three Touring cabin, you'll see impressive cargo capacity, intuitive design and multiple displays that help you to monitor your car's remarkable efficiency. The EGR Valve was. The number one cylinder is on the right side bank of cylinders (firewall side) and it at the front of the engine by the serpentine belt. ok first the vehicle 2003 silverado LS 2500HD 4x4 automatic former plow truck fleet vehicle 114,000 miles 1800 hours ok the lq4 in the truck has developed a misfire at 2500rpm or above the only cylinders that are misfiring are 1,5,6,and 8 it is only throwing a p0300 random misfire code. However, the code P0300 displays as "random/multiple cylinder misfire detected" which means its more than one. they have a call in to DODGE Tech Line and they are supposed to get back w/ dealer in the morning. If the Engine System has a Misfire Counter for specific cylinders on the Scan Tool Data Stream, pay very close attention to the cylinders(s) named in the misfire code(s). Right now, it starts up fine, idles fine, drives well for a few miles then starts misfiring. 0 insparation with a very bad misfire problem. The fault could be a fouled or worn spark plug, fuel injector problem, vacuum leak at this cylinder or a mechanical problem within the cylinder (leaking intake or exhaust valve, carbon build-up, etc. Real-life repair scenario: 2003 E320, with 3. Select Data, and then misfire data, from the menu options. My car started having a hard vibration as I drove to work. The faults for bad ignition coils could be misfires on a single or multiple cylinders with possible fault codes being P0300, P0301(for cylinder 1), P0302(for cylinder 2) , P0303(for cylinder 3), P0304(for cylinder 4) or P0305(for cylinder 5). Any thoughts on what I should do?. Toyota Prius Brake Master Cylinder Replacement costs between $316 and $4912 on average. All internal engine parts including: pistons, piston rings, piston pins, crankshaft and main bearings, connecting rods and rod bearings, camshaft and camshaft bearings, timing chain and timing gears, intake and exhaust valves, valve springs, oil pump, push rods, rocker arms and shafts. thankfully an exit off fwy and a gas station within coasting. I figured it is time to replace the spark plugs. Misfire on Cylinder No. 09 wrx misfire cyl 4, 13 subaru wrx random multiple misfire, 13 wrx cylinder bypass, 13 wrx random misfire on all cylinders, 2013 subaru sti misfire, 2013 wrx p0300, 2013 wtx p0300, 2015 wrx misfire, random misfire on 2013 wrx, subaru bugeye misfire, subaru wrxmisfire issues 2010, wrx poping at idle. This must be a widespread issue because it took them a month to get the part!. When the engine misfires, you will lose power, your gas mileage will drop and the vehicle can even fail emissions. I don't have the tools or experience to check the valves or vaccuum. Thread author #1 InsaneMachine Buick Newbie It was only this code(P0300 Random Multiple Cylinder Misfire Detected), nothing about a specific cylinder. Drove the short distance to work, and then had it towed to a local Toyota dealership. On a small displacement V8, it can be really drastic feeling. Equip cars, trucks & SUVs with 2010 Toyota Prius Ignition Coil from AutoZone. Then a week later got a misfire 0301 code. So, I did the obvious: 1) I have a Predator programmer and the first thing I did was return it to a stock tune. #PIP4138N: SES Light, Misfire, DTC P0300, And/or A Chirp, Squeak, Squeal, Or Tick Noise - Potential Valvetrain Concern - (Aug 5, 2013). So I replaced all coil packs and spark plugs in all cylinders and cleared the code. P0301 is a cylinder specific misfire code, which means that cylinder 1 is misfiring and causing the code. 03 VW Passat with multiple random cylinder misfire. Step 1 - There are several combinations of misfire conditions, steady or random, at idle or under power, which may or may not be detected by the computer and trigger a check engine or service engine soon light, read trouble codes to help pinpoint the cylinder(s) in question and follow the repair guide below. Ran compression test on both cylinders, each cylinder hold 150psi. The book says Cylinder Misfire on # X.