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International Automotive Technicians Network

P0300 Diagnostic Trouble Code Discussion for December 2016

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2000 Chevrolet Tahoe LT 5.3L Misfire VIN: 1GNEK13T3Y
P0300: Multiple Cylinder Misfire Detected. ... the MIL for a p0300, we have covered a lot of ground. In looking recently at my Freeze frame data for the 300 codes I see EGR command and position is almost always at highway speed, with EGR at or around 50%. My p0401 code is almost the opposite with the E...
December 06, 2016
2005 Chevrolet Silverado 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1GCHK23U75
P0300: Multiple Engine Misfire Detected. ... truck. At first it had a codes for 1/1 o2 sensor heater circuit and P0300. We replace the o2 sensor and plugs and wires because it needed them. Went for test drive the misfire counter shows on cylinder 1 and 6 but no P0301 or P0306 codes. I tried to do a c...
December 07, 2016
2008 Nissan Pathfinder SE 4.0L Misfire VIN: 5N1AR18U98
P0300: random misfire mode 6 data indicates 3. All tests point to ECM driver failure, are these a problem have not seen anything in history on IATN or on line for this vehicle. To recap the vehicle has 12 volts to injector, will not pulse injector or noid light, injector works when harness swapped with #1 ...
December 07, 2016
2005 Chevrolet Silverado 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1GCHK23U75
P0300: Multiple Engine Misfire Detected. ... truck. At first it had a codes for 1/1 o2 sensor heater circuit and P0300. We replace the o2 sensor and plugs and wires because it needed them. Went for test drive the misfire counter shows on cylinder 1 and 6 but no P0301 or P0306 codes. I tried to do a c...
December 08, 2016
2012 Land Rover Range Rover Sport HSE 5.0L Misfire, MIL Lamp on, Long crank VIN: SALSK2D48C
Intermittently the truck will start perfect and run well. But as always on every other start P0087 is stored. Afer runs for 20 min misfires show back up and truck runs like garbage. Any help would be greatly appreciated. Also fuel pressures look good in liv...
December 09, 2016
2004 Chevrolet Suburban 1500 Z71 5.3L Misfire VIN: 1GNFK16Z84
P0300: Multiple Cylinder Misfire Detected. Came in with misfire. Codes p0300 and p0306. Replaced Plugs and wires. Check for misfires with scanner and still had misfires on 2,4,6,8. No misfires recorded on 1,3,5,7. Need some help please. al
December 12, 2016
1999 GMC Yukon SLT 5.7L Misfire, MIL Lamp on VIN: 1GKEK13R0X
P0300: Multiple Cylinder Misfire Detected. Vehicle continues to run rough throws p0300 after start up koeo injector balance 64/59 at all injectors. All injectors except cyl. No. 1 and no. 2 opposite banks in front change engine rpm when injectors are disabled cyl 1 & 2 do not change engine rpm. Thi...
December 19, 2016
2000 Chevrolet K3500 LS 7.4L Hesitation, Surge, Misfire, MIL Lamp on VIN: 3CEZ9AF008
P0300: Multiple Cylinder Misfire Detected. Vehicle keeps throwing a po300 code, when you go to the misfire counter history there are high numbers an most cylinders. At idle it very rarely showed any misfires also when you drive hard under loading you will not feel or see any misfires. The only time the...
December 20, 2016
2005 Chevrolet Trailblazer EXT LS 5.3L Poor Idle Quality, MIL Lamp on VIN: 1GNET16M85
P0300: Random miss. Was here 2 weeks ago for low oil indication (no engine noise) was 5k over oil service due. Cleaned oil screen in oil manifold for displacement system.(was very dirty) oil indication returned to normal. Now vehicle back with miss fire @ cyl 6. Steady miss fire ...
December 20, 2016
1999 GMC Sierra 1500 SL 5.3L Misfire VIN: 2GTEK19T6X
P0300: Multiple Cylinder Misfire Detected. ... has p0300 missfire code. Scanning it on tip in while parked we can see cylinders 1 and 6 hitting, can feel slight rummble but no definate miss feel, adaptives are in single digets, Thaught crank signal was suspect but put new sensor in no change, Did crank...
December 22, 2016
2002 Toyota Camry LE 3.0L Poor Idle Quality, Surge, Cuts out, Stall VIN: 4T1BF30K62
P0300: Multiple Cylinder Misfire Detected. ... belt, water pump, valve cover gaskets. Vehicle had no symptoms of running issues before work. Check engine on prior to service. Vehicle came back due to stalling, and surging mostly when cold, to warm. Engine hot runs pretty well. Scanned codes, found rand...
December 22, 2016
2000 Chevrolet K3500 LS 7.4L Hesitation, Surge, Misfire, MIL Lamp on VIN: 3CEZ9AF008
P0300: Multiple Cylinder Misfire Detected. Vehicle keeps throwing a po300 code, when you go to the misfire counter history there are high numbers an most cylinders. At idle it very rarely showed any misfires also when you drive hard under loading you will not feel or see any misfires. The only time the...
December 23, 2016
2002 Toyota Camry LE 3.0L Poor Idle Quality, Surge, Cuts out, Stall VIN: 4T1BF30K62
P0300: Multiple Cylinder Misfire Detected. ... belt, water pump, valve cover gaskets. Vehicle had no symptoms of running issues before work. Check engine on prior to service. Vehicle came back due to stalling, and surging mostly when cold, to warm. Engine hot runs pretty well. Scanned codes, found rand...
December 23, 2016
2007 Saab 9-3 2.0T 2.0L MIL Lamp on VIN: YS3FD46Y87
P0300: Random Misfire. Ok guys, the "Saab experts" I work with have no input, so I'm looking for some tips. Car has an intermittent problem, just got it to actually act up, not just a "Mil on" situation. I've driven myself nuts here, see the above things already done...
December 29, 2016
2007 Saab 9-3 2.0T 2.0L MIL Lamp on VIN: YS3FD46Y87
P0300: Random Misfire. Ok guys, the "Saab experts" I work with have no input, so I'm looking for some tips. Car has an intermittent problem, just got it to actually act up, not just a "Mil on" situation. I've driven myself nuts here, see the above things already done...
December 30, 2016