P0300 Diagnostic Trouble Code Discussion for July 2020
Multiple Misfire Detected
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| Help Request | Posted | |
| 2002 Chevrolet Express 3500 5.7L Excessive RPM's VIN: 1GCHG35R22 P0300: Multiple Cylinder Misfire Detected. Bought vehicle from customer in hopes to resale it. Had lots of misfires in all cylinders, plug wires were touching exhaust manifold and most of the plug wires had electrical tape on them. Did a tune-up using only OE parts. Seemed to help but still had mis... |
July 06, 2020 | |
| 2002 GMC Yukon SLE 5.3L Misfire VIN: 1GKEK13Z62 P0300: Multiple Cylinder Misfire Detected. Hello. This was towed in overnight with a no start complaint. Customer said it has a bad fuel pump and filter. Got in it and started right up and has only not started 1 time since but that was just a short delay after sitting overnight. Checked for the lis... |
July 07, 2020 | |
| 2016 Honda Pilot EX 3.5L Misfire VIN: 5FNYF5H64G P0300: misfires also misfires on all cylinders. Car came in running rough and had a ton of lights on the dash. The faults relating to the misfires were addressed first. SIB 19-072 from Honda stated to replace all injectors and update PGM. for all MY 2016 Pilots. ( car does not have 9 speed AT, no ne... |
July 07, 2020 | |
| 2003 Pontiac Grand Am SE 3.4L Misfire VIN: 1G2NF52E43 P0300: Multiple Cylinder Misfire Detected. ... students and I have checked everything I can think of. The customer states that the car would die sometimes when it was cold and had a misfire. I never was able to confirm that it would die but it does miss at an idle. We first checked for codes and f... |
July 08, 2020 | |
| 2012 Ford F-250 Super Duty Lariat 6.2L Misfire, MIL Lamp on VIN: 1FT7X2B68C This a good one Ford people LOL. This is a BNSF railway truck. Truck came is with complaint of ses lamp on and missing. Scanned and found po300,po303,and po308. Was not missing at the time. Replaced 3 and 8 plug and coil with Ford parts, Driver came back a... |
July 09, 2020 | |
| 2008 Nissan Versa SL 1.8L Stall VIN: 3N1BC11E58 P0300: Random misfire idles really bad in gear. ... that stalls when stopping. Customer commented "he could keep it going by shifting into neutral at stop signs. It's not AS BAD with A/C off!" Verified that concern had Random misfire code P0300. In mode 6 there were some misfire events on cyl #1... |
July 10, 2020 | |
| 2009 Audi A4 Quattro 2.0L Misfire VIN: WAUVF78K79 P0300: Random misfire. Hey guys here's good one. Car has a misfire on cylinder 4 but it doesn't happen all the time. I checked the data and it will go from 10-24 per 1000 revolution. Carbon on the intake valves were clean. They didn't look too bad for the mileage. Replaced the w... |
July 13, 2020 | |
| 1998 Pontiac Grand Am SE 2.4L Misfire VIN: 1G2NE52T6W P0300: Multiple Cylinder Misfire Detected. ... wouldnt stay running/bucking and missing hard. found p0300. dead miss on cyls 2 and 4. good spark on all 4 cyls (tested with module off, and 4 spark plug wires with inline spark tester). fuel pressure good koeo, koer. injector pulse good (tested with ... |
July 14, 2020 | |
| 2012 Chevrolet Impala LS 3.6L floods cylinders VIN: 2G1WF5E33C P0300: misfire. Car came in for misfire on #2 cylinder. Check plugs and coils. Removed front and rear fuel rails. Replace #2 injector. After putting everything back together misfire gone on #2 cylinder but now missing on cylinders #1,3 and 5. Removed spark plugs. Back 3 p... |
July 20, 2020 | |
| 2005 GMC Jimmy 4.3L Misfire, MIL Lamp on VIN: 1GKCT18X65 P0300: Multiple Cylinder Misfire Detected. misfire under load or pulling up hills, #6 cylinder could make it miss with vehicle in reverse loaded we installed new bank 2 upper o2 new cap and rotor again, looked like arcing in cap new spider assy installed comp test 140 running comp test 60, throttle... |
July 20, 2020 | |
| 2012 Chevrolet Impala LS 3.6L floods cylinders VIN: 2G1WF5E33C P0300: misfire. Car came in for misfire on #2 cylinder. Check plugs and coils. Removed front and rear fuel rails. Replace #2 injector. After putting everything back together misfire gone on #2 cylinder but now missing on cylinders #1,3 and 5. Removed spark plugs. Back 3 p... |
July 21, 2020 | |
| 2003 Jeep Liberty Limited 3.7L Misfire, MIL Lamp on VIN: 1J4GL58K63 P0300: Multiple Misfire Detected. this jeep has or hair pulled out . came in with misfire ,started on a cylinder , then another ,and another , then back to first one, then another. after many hours - we can duplicate it in the shop , under a load , between 1500 and 2000 rpm , misfires will... |
July 23, 2020 | |
| 2006 Ford Explorer Eddie Bauer 4.6L Misfire VIN: 1FMEU74846 P0300: Random multi cylinder misfire. This explorer has misfires on all cylinders on bank 1. Cylinders 3 and 4 have thousands and cylinders 1 and 2 have hundreds. I have replaced coils and plugs to no avail. What should my fuel pressure be? With koeo the pressure is 56psi. With engine running ... |
July 27, 2020 | |
| 2003 Jeep Liberty Limited 3.7L Misfire, MIL Lamp on VIN: 1J4GL58K63 P0300: Multiple Misfire Detected. this jeep has or hair pulled out . came in with misfire ,started on a cylinder , then another ,and another , then back to first one, then another. after many hours - we can duplicate it in the shop , under a load , between 1500 and 2000 rpm , misfires will... |
July 27, 2020 | |
| 1998 Porsche Boxster 2.5L MIL Lamp on VIN: WP0CA2983W The code description from Alldata gives enabling criteria and a note that states "The fault can be stored only if the engine was disassembled and the allocation of the outlet camshaft with respect to the inlet camshaft was incorrectly set." The own... |
July 30, 2020 |
