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P0300 Diagnostic Trouble Code Discussion for March 2016

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2006 Isuzu i-280 2.8L Poor Idle Quality, Stall VIN: 1GGCS19826
P0300: Engine Misfire Detected. ... Replaced the Map Sensor with a NAPA part. Also replace the Evap Vent Control Solenoid (attached to the Evap Cannister}. The P0446 code went away but, the Map sensor again set the MIL P0106. VRef is 5.03 Volts, MAP shows 27.7 HG. (Spec 14.17 HG) Removed the...
March 01, 2016
1999 Chevrolet Blazer 4.3L Misfire
P0300: Multiple Cylinder Misfire Detected. Hi, just got in this Blazer with a dead misfire on number one. The customer installed lifters at home and adjusted the valves using the old school method of tightening while the engine is running until the tick stops then going an extra half turn. I checked th...
March 02, 2016
2005 Acura MDX Touring 3.5L MIL Lamp on VIN: 2HNYD18845
P0300: Random Misfire Detected. A miss is sometimes at idle. The misfire counter shows a miss at various cylinders at cruise. I am thinking it is time to replace the injectors because I think one or more is leaking. The fuel trim shows rich, particularly on bank 1. Any other suggestions?
March 04, 2016
2007 Suzuki XL-7 3.6L Misfire, MIL Lamp on VIN: 2S3DA21747
P0300: Engine Misfire Detected. Engine runs rough intermittently and cam/ correlation codes set for bank 1 and bank 2 intakes. My question is has anybody ran into a 3.6 with these codes that have timing chain issues that are intermittent and only affect intake cam timing and not exhaust cam ...
March 04, 2016
2004 Ford Explorer Sport Trac XLT 4.0L Misfire, MIL Lamp on VIN: 1FMZU77K34
P0300: Random misfire. ... shop after they replaced the balancer on this Sport Trac.. It will consistently set a P0301 misfire code while accelerating. Have ruled out plug, plug wire, coil and injector as being the problem. Compression is 175 psi. Was wondering if any of you have ex...
March 08, 2016
2007 Mercedes-Benz CLK63 AMG 6.3L Poor Idle Quality, Misfire VIN: WDBTK77G87
P0300: random misfire. This vehicle runs rough when warmed to full operating temperature, then shut off for 40 minutes or so. Sets misfires on cylinders 1 and 2 but will also show occasional misses on cylinders 4,5,8. swapped spark plugs and coils around, bank 1 injectors swapped fr...
March 09, 2016
1996 Dodge Dakota 3.9L Misfire, MIL Lamp on VIN: 1B7GG23X6T
P0300: Multiple Cylinder Misfire Detected. Please help! This truck is baffling me, it initially came in for an intermittent crank/ no start. The culprit was a bad ignition coil shorting and damaging the driver inside the engine computer. Customer drove vehicle for a few weeks problem free until the MIL...
March 10, 2016
1996 Dodge Dakota 3.9L Misfire, MIL Lamp on VIN: 1B7GG23X6T
P0300: Multiple Cylinder Misfire Detected. Please help! This truck is baffling me, it initially came in for an intermittent crank/ no start. The culprit was a bad ignition coil shorting and damaging the driver inside the engine computer. Customer drove vehicle for a few weeks problem free until the MIL...
March 11, 2016
1999 Chevrolet Blazer 4.3L Misfire
P0300: Multiple Cylinder Misfire Detected. Hi, just got in this Blazer with a dead misfire on number one. The customer installed lifters at home and adjusted the valves using the old school method of tightening while the engine is running until the tick stops then going an extra half turn. I checked th...
March 14, 2016
2010 GMC Acadia SLE 3.6L Misfire VIN: 1GKLRLED3A
Hey out there, This car has been giving me a run for my money. There is a dead misfire on Cyl 4 and Cyl 6. I have a few questions, First would the fuel pressure being down 15psi cause 2 cylinders to misfire? Second has anyone seen the high pressure pump fail (...
March 16, 2016
2004 Saab 9-3 Aero 2.0L MIL Lamp on VIN: YS3FH79Y94
P0300: . ... a codes p0300 i replaced the coils and plugs it came back 2 days later with the same codes p0300 i check the fuel pressure 40 psi notice when start up cold it runs a little rough and smooth out any idea thank you
March 16, 2016
2010 GMC Acadia SLE 3.6L Misfire VIN: 1GKLRLED3A
Hey out there, This car has been giving me a run for my money. There is a dead misfire on Cyl 4 and Cyl 6. I have a few questions, First would the fuel pressure being down 15psi cause 2 cylinders to misfire? Second has anyone seen the high pressure pump fail (...
March 18, 2016
2005 Infiniti G35 3.5L Excessive Emissions, Hesitation, Cuts out, Misfire, Poor Fuel Economy VIN: JNKCV54EX5
P0300: Multiple Misfire Detected. ... real amateur! Car came in with leaking valve covers, replaced gaskets hasn't left due to issue that started after repair. Issue - Car looses power after 3000 RPMS and struggles to reach redline at any temperature, drives fine up to 3000 rpms once goes ov...
March 19, 2016
2013 Mercedes-Benz ML350 3.5L Misfire, MIL Lamp on VIN: 4JGDA5HB0D
P0300: random misfire. Hi everyone, We have this ml350 that occasionally sets a misfire code for cly 4. We have replaced the coil and the spark plug with OEM units but still will set these codes. During our test drives it runs smooth but when we return it to the owner it comes bac...
March 21, 2016
2001 Nissan Frontier SE 3.3L Poor Idle Quality, Stall, Misfire VIN: 1N6ED27Y41
P0300: Multiple Misfire Detected. Misfires on cylinders 3 4 5 and good compression has injector pulse on 3 and 5 and can hear injector clicking with stethoscope. cap looks good plugs all have hot spark. vehicle starts every time runs rough can remove all 3 wires from cap and still runs. has a ...
March 21, 2016
2009 Mazda CX-7 Touring 2.3L MIL Lamp on VIN: JM3ER29319
P0300: Random misfire. ... ,oil light and check engine light on also had engine noise and misfiring. Diagnosis indicated problem with vvt actuator,customer brought his own parts (actuator, timing chain tensioner etc.)technician brought the engine to top dead center and marked both c...
March 22, 2016
2002 Pontiac Grand Prix SE 3.1L Hesitation, MIL Lamp on VIN: 1G2WK52J42
P0300: Multiple Cylinder Misfire Detected. Car starts right up, idles fine. However when driven stumbles / hesitates / lack of power under load. Plugs and wires were original. Plugs in bad shape. Replaced spark plugs and wires. Symptoms seemed to improve slightly. Fuel pressure was good and increased a...
March 23, 2016
2004 Porsche 911 Turbo 3.6L Hesitation, Cuts out, Misfire, wont scann VIN: WP0CB29924
P0300: Random Miss. Car has a problem with running rich as well as will bog and sputter under boost and misfire on mostly cyl 1 2 3 and sometimes 4. It will also have a choppy idle and occasionally stall. My main problem is that the car will not read while running at all it just ...
March 24, 2016
2004 Volkswagen Touareg V6 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVGBC67L34
customer traveling broke down on the way home. car was towed from another shop fuel pumps were disassembled and broken repaired fuel system. car runs now but surges and no power. not sure if other shop could have disconnected or broken anything else or this wa...
March 24, 2016
2005 Chevrolet Colorado Z85 LS 3.5L Poor Idle Quality, Stall, Misfire VIN: 1GCDT13625
P0300: Engine Misfire Detected. Owner drove to garage complaining of very rough idle, worse with more throttle but all of a sudden it was ok and he drove to garage. now it will only run for a few seconds now and then. Starts, fast idle, then starts to misfire and finally stalls. If I add fue...
March 25, 2016
2005 Infiniti G35 3.5L Excessive Emissions, Hesitation, Cuts out, Misfire, Poor Fuel Economy VIN: JNKCV54EX5
P0300: Multiple Misfire Detected. ... real amateur! Car came in with leaking valve covers, replaced gaskets hasn't left due to issue that started after repair. Issue - Car looses power after 3000 RPMS and struggles to reach redline at any temperature, drives fine up to 3000 rpms once goes ov...
March 25, 2016
2007 Mazda 6 i 2.3L Hesitation, Cuts out, Misfire VIN: 1YVHP80C37
P0300: Random Misfire Detected. After replacing crankshaft due to a spun main bearing, the vehicle has a random misfire under heavy acceleration/load. Idle's great, and while in neutral if you accelerate the engine sounds solid. Replaced spark plugs. Swapped coils 3 & 4 around, and nothi...
March 29, 2016
2007 Mercedes-Benz SL600 5.5L Misfire, MIL Lamp on VIN: WDBSK77F37
P0300: random/multiple cyl. misfire. Previous customer but first time in with this car. Two problems #1) Cylinders #1 to #6 shut off. #2)Message on instrument cluster relating to shut off of electrical convenience features. Problem #2 turned out to be the trunk battery having 5 volts and would no...
March 29, 2016
2007 Mercedes-Benz SL600 5.5L Misfire, MIL Lamp on VIN: WDBSK77F37
P0300: random/multiple cyl. misfire. Previous customer but first time in with this car. Two problems #1) Cylinders #1 to #6 shut off. #2)Message on instrument cluster relating to shut off of electrical convenience features. Problem #2 turned out to be the trunk battery having 5 volts and would no...
March 30, 2016
2002 Toyota Prius 1.5L Misfire VIN: JT2BK12UX2
P0300: Multiple Cylinder Misfire Detected. Car came in with Mil on and rough running when ICE is active. Found codes listed. Test drove, OK. Let sit, would misfire on #1 and #2 sometimes. Sometimes just #1 sometimes just #2, sometimes both. Coils ,plugs, injectors, valve clearance are OK. Throttle body...
March 30, 2016
2013 Chevrolet Captiva Sport LT 2.4L Cuts out, Misfire VIN: 3GNAL3EK8D
P0300: Random cyl misfire. Customer towed vehicle with stalling condition, found cyl 4 coil burned & cracked. Installed new coil and vehicle now runs but still dead miss on cylinder 4. Tried swapping spark plugs and still same thing the plug just gets soaked with fuel.
March 31, 2016