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P0300 Diagnostic Trouble Code Discussion for January 2013

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2004 Volkswagen Beetle GLS 1.8L Misfire VIN: 3VWCD31Y14
P0300: multiple cylinder misfire. On a cold start engine misfires for short time then smooths out, once it smooths out it will run fine under all driving conditions. I noticed that the secondary air pump runs on a cold start and it shuts off about the same time that the engines misfires stop. ...
January 01, 2013
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVWPD63B73
P0300: Random missfire. car came in with multiple codes: P0304,300,303,301,302 - all cylinder missfires. P0507 - iac high idle, higher than expected. P0411 - secondary air injection incorrect flow. P0171 - system lean bank 1. after smoke testing for vac leaks found 2 hoses leaking an...
January 08, 2013
2001 Audi A6 Quattro 2.8L Misfire VIN: WAUEH64BX1
P0300: misfire detected. Have this 2001 Audi A6 2.8 with misfire codes. (see list) appears to be the drivers bank of cylinder. checked fuel pressure. (70 psi) checked camshaft position sensor (ok) hear slight popping in intake at idle. no engine noise from chain tensioner. checked cam...
January 09, 2013
2008 Infiniti EX35 Journey 3.5L Misfire, MIL Lamp on VIN: JNKAJ09F68
P0300: random cylinder misfire detected. Vehicle came in with engine light on and flashing sometimes. Car misfires but only sets random misfire code. We changed engine oil because it was due to be changed but did not help problem. I swapped exhaust valve timing control position sensors to see if prob...
January 09, 2013
2008 Jeep Grand Cherokee Laredo 3.7L Misfire
P0300: Misfire. Code po300 still comes back hot cold and not all the time
January 09, 2013
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality, Misfire VIN: WVWPD63B13
P0300: Random/Multiple Cylinder Misfire Detected. I have a turbo passat that runs great except at idle. There are also missfire codes stored for every cylinder. Acts just like a vacuum leak. I have checked all over for vacuum leaks and can not find any. I have smoke checked the intake and inner cooler system ...
January 09, 2013
2008 Jeep Grand Cherokee Laredo 3.7L Misfire
P0300: Misfire. Code po300 still comes back hot cold and not all the time
January 10, 2013
2002 Kia Optima SE 2.7L No Start, Misfire VIN: KNAGD12892
P0300: Random Cylinder Misfire Detected. Towed into shop as a crank and no start. I crank for about 20 seconds on it and it started. I drove it and it ran fine. After it would set for about 30 minutes then it would take maybe 10 seconds to crank before it would start. Then it started and ran fine fo...
January 11, 2013
2000 Dodge Intrepid 2.7L No Start, Poor Idle Quality, Hesitation, Stall, Misfire VIN: 2B3HD46R4Y
P0300: Multiple Cylinder Misfire Detected. Thanks to all reading this. I am really in the weeds on this one. I inheritted this car from a coworker after he spent a couple of days getting nowhere. When the car came in as a no start shortly after getting gas, we were able to get it started and limp into ...
January 12, 2013
2007 Chevrolet Tahoe LTZ 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1GNFK13067
P0300: Multiple Engine Misfire Detected. ... had P0300 set - misfire data shows constant misfires on #1 and frequent misfires on #8 all other cylinders are ok. I pulled the #1 spark plug and it was soaked with fuel as was #8. I tested both coils for Kv output with my lab scope and they both are capab...
January 13, 2013
2007 Chevrolet Tahoe LTZ 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1GNFK13067
P0300: Multiple Engine Misfire Detected. ... had P0300 set - misfire data shows constant misfires on #1 and frequent misfires on #8 all other cylinders are ok. I pulled the #1 spark plug and it was soaked with fuel as was #8. I tested both coils for Kv output with my lab scope and they both are capab...
January 14, 2013
2001 Audi A6 Quattro 2.8L Misfire VIN: WAUEH64BX1
P0300: misfire detected. Have this 2001 Audi A6 2.8 with misfire codes. (see list) appears to be the drivers bank of cylinder. checked fuel pressure. (70 psi) checked camshaft position sensor (ok) hear slight popping in intake at idle. no engine noise from chain tensioner. checked cam...
January 15, 2013
2006 BMW X5 4.4i 4.4L Misfire, MIL Lamp on VIN: 5UXFB53506
P0300: random misfire. car misfires when first cold in the morning but clears out, does not smoke at all. replaced both crankcase vent valves and updated hoses, installed new plugs an reprogrammed pcm. car has misfires on all cylinders, mostly on cold mornings. read all tsb about mo...
January 15, 2013
1998 Buick Park Avenue 3.8L Misfire, MIL Lamp on VIN: 1G4CW52K9W
P0300: Engine Misfire Detected. I have an old buick that has a cylinder 1 and 4 miis in the scan tool data, no other cylinders missing the miss starts at 2000rpm you can almost feel it. I have an old snap on vantage with the kv module and i do not see any difference from on plug wire to the ...
January 16, 2013
2003 GMC Envoy XL SLT 5.3L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GKET16P93
P0300: Multiple Engine Misfire Detected. Stumped again. This Envoy idles terrible and even dies out at idle sometimes. Both upstream 02s run at about 40 -60 mv. Soon as I touch the throttle they respond and go to 800 -900mv and they start responding perfectly. Fuel trims at idle are above 50 but I ca...
January 20, 2013
2004 Mazda 6 S 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1YVHP82D54
P0300: Random Misfire Detected. This vehicle has random misfire when it reaches operating temp. The front cat had to be replaced. It was glowing red and had come apart and was clogged. The misfire is still present. The new cat also glows read indicating raw fuel is still passing through the ...
January 21, 2013
2004 Cadillac SRX 4.6L Misfire, MIL Lamp on VIN: 1GYEE63A94
P0300: Engine Misfire Detected. please help car has been back a few times we replaced the engine sometime in nov 29, car keeps coming back to our shop with different codes everytime we replaced engine, throttle body assy., coils, injectors,plugs
January 22, 2013
2001 Nissan Pathfinder LE 3.5L Hesitation, MIL Lamp on VIN: JN8DR07Y81
P0300: Multiple Misfire Detected. ... listed above. Swaping plugs and coils did not help as all I have now is a p0300 random misfire listed. Very intermitant and unable to get it to act up. Fuel pressures and exhaust backpressure all seem to be in spec. Checked ...
January 23, 2013
2004 Suzuki XL-7 LX 2.7L Poor Idle Quality VIN: JS3TX92V14
P0300: Multiple Cylinder Misfire Detected. Well well im here try the get some help from you my friends i have this suzuki that is making me to lose my head some other shop is bean playing whit, and now is in may shop; is running rough in idle but going down the road is fine my short fuel trim at bank 2...
January 23, 2013
2002 Ford Ranger Edge 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTYR10U12
P0300: random misfire. Customer brought the vehicle in complaining of a misfire in reverse and CEL was on.This truck had a tuneup about 6 months ago at another shop and plugs and wires are motorcraft. test drove and the misfire is there all the time.Pulled codes and found P301 and P...
January 24, 2013
2005 Chrysler Town & Country (Van) Touring 3.8L Misfire, MIL Lamp on VIN: 2C4GP54L75
P0300: Misfire Multiple. I have this van that I am trying to figure out where the misfire is coming from. Supposed to be a simple ignition system. Cyl 1 and 4 setting misfire codes after new coil was installed. I know 1 and 4 is fired by the same coil. Have never seen coil signal drop...
January 25, 2013
2008 Chrysler Town & Country (Van) Touring 3.8L No Start VIN: 2A8HR54P08
P0300: Random misfire. This is the first time i have asked for help here so i hope someone out there has an answer.thanks in advance. Van came in with complaint of feeling like misfire.test drive confirmed a quick hicup once in a great while like loosing crank signal.when i played a...
January 26, 2013
2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire VIN: 1GCEC14X23
P0300: Multiple Cylinder Misfire Detected. Misfiring on all cylinders check for vacuum on dipstick tube to see if intake manifold gasket leaking causing misfires-none check fuel pressure-55lbs install lab scope on crank sensor-ok install lab scope on cam sensor-random small spike at top of wavepattern ...
January 28, 2013
2003 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 5FNRL18983
P0300: Random Misfire Detected. ... condition only during start up and only after a long cold soak. The misfire condition is very brief, (8 - 15 seconds in duration). After it clears, it doesn't misfire at all during normal operation and will not occur again until it sits dormant for several...
January 28, 2013
2000 Pontiac Montana 3.4L Misfire VIN: 1GMDX03E1Y
P0300: Multiple Cylinder Misfire Detected. This is my own vehicle. Replaced head gaskets 1K ago and all was fine for a couple weeks. Then sometimes when cold the SES light would come on and a random misfire code would set. Could fine no misfire nor feel one. About 2 weeks of that and then start after w...
January 28, 2013
1998 Mazda MPV ES 3.0L Hesitation, Cuts out VIN: JM3LV5232W
P0300: Multiple Misfire Detected. Hello there I have this MPV here and when you acellerate it will not go. It looses power and will throw a random misfire code. I replaced the mass airflow sensor, cap and rotor tested the TP sensor and fuel pressure is 48-58 psi. when you try to rev up the eng...
January 29, 2013
1998 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 1GCEK19R0W
P0300: Multiple Cylinder Misfire Detected. this vehicle has a rebuilt nengine two yrs ago. it has 130,000 miles on it now and problems . the moddis shows #6 cyl misfire up to na count of 35 per every 100 cycles of the misfire detection system. it wil only show this when transmission is in park or neutr...
January 30, 2013
1998 Mazda MPV ES 3.0L Hesitation, Cuts out VIN: JM3LV5232W
P0300: Multiple Misfire Detected. Hello there I have this MPV here and when you acellerate it will not go. It looses power and will throw a random misfire code. I replaced the mass airflow sensor, cap and rotor tested the TP sensor and fuel pressure is 48-58 psi. when you try to rev up the eng...
January 30, 2013
2006 Mercedes-Benz E350 3.5L Misfire VIN: WDBUF56J76
P0300: Random misfire. We resealed valve covers. We did not pull front covers off as it was only leaking from the back areas. We test drove the car for about 20 minutes (idle and driving) Brought it back into shop. Shut of engine, restarted and had a direct misfire and 2 codes. All ...
January 30, 2013
2007 Audi A8 Quattro 4.2L Misfire VIN: WAULV44EG7
P0300: Random / Multiple Cylinder misfires detected. First question, is number #7 spark plug hole on the drivers side, Alldata says it is? We have replaced all the spark plus and one coil # 7 and we still get the Check Engine light flashing on hard accelloration for #7 cyl. We checked the coil connecter for #7 c...
January 31, 2013
2007 Chevrolet Tahoe LTZ 5.3L Misfire, Poor Fuel Economy, MIL Lamp on, Limp Mode VIN: 1GNFC13017
P0300: Multiple Engine Misfire Detected. Customer drove the vehicle here in limp mode with check engine light and stabilitrak message on. We checked fuse 13 because the customer just had it replaced at Jiffy Lube. Fuse 13 was blown, we replaced. We had codes for injectors 2,4,6,8 we have cleared and ...
January 31, 2013