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P0300 Diagnostic Trouble Code Discussion for September 2004

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
1997 Chevrolet Tahoe LS 5.7L heavy pinging VIN: 1GNEC13R1V
P0300: Multiple Cylinder Misfire Detected. My wifes vehicle, when climbing a steep grade the truck pings like a banshee. Street driving no problem, full throttle starts no ping detected, just on steep grades. Any GM Techs seen a flash for the VCM or a fix for this problem.
September 01, 2004
2002 Jeep Grand Cherokee Limited 4.0L Misfire VIN: 1J4GW48S2Y
P0300: Multiple Cylinder Misfire Detected. Well for starters there is a repeated problem with this vehicle.After performing tune up procedures at the first time we seen this veicle,we returned it to the customer.The veicle was running perfect no codes,it then returned about six weeks later with the sam...
September 07, 2004
1996 Mitsubishi Eclipse GSX 2.0L Misfire VIN: 4A3AL54F9T
P0300: Random Misfire Detected. Hi guys ! this car has failed smog. one of the problems is the tach is inop. the customer has after market devices- turbo boost and air flow also timmer shut-off delay for turbo cool down.these are all disconected for our testing. we found the tach signal prob...
September 07, 2004
1998 Mercedes-Benz ML320 3.2L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 1JGAB54EXW
P0300: mutliple misfire. Hello all, THANK YOU for your valuable time. This ML320 has been killing us, the complaint is no acceleration. This occurs after the vehicle is driven at rpm's reaching over 3800. After the vehicle is shut off the ecm resets and everything (aside from a very s...
September 08, 2004
1996 Mitsubishi Eclipse GSX 2.0L Misfire VIN: 4A3AL54F9T
P0300: Random Misfire Detected. Hi guys ! this car has failed smog. one of the problems is the tach is inop. the customer has after market devices- turbo boost and air flow also timmer shut-off delay for turbo cool down.these are all disconected for our testing. we found the tach signal prob...
September 08, 2004
1999 Chevrolet Malibu 2.4L Misfire VIN: 1G1ND52TXX
P0300: Multiple Cylinder Misfire Detected. ... but had a bad misfire. I scanned and came up with code P0300. Checked and discovered #1 & #3 cylinders misfiring. Replaced coils, plugs and coil housing. Car ran fine, road tested and delivered car. About ten days later, car is back on the hook, same p...
September 09, 2004
1999 Kia Sephia LS 1.8L Hesitation, MIL Lamp on VIN: KNAFB1210X
P0300: Random Cylinder Misfire Detected. After the vehicle cools off, it hesitates and lacks power until it reaches operating temperature. The spark plugs, wires, and coils were replaced with oem parts. The TPS and MAF sensors were also replaced with oem parts.Fuel pressure remains steady at 50psi wh...
September 09, 2004
2002 Pontiac Grand Prix SE 3.1L Hesitation, Surge, Cuts out, Misfire VIN: 1G2WK52J52
P0300: Multiple Cylinder Misfire Detected. This vehicle came in with a severe lean hestitation on accel. Dealer flashed the PCM, thinking an update might fix the problem. No change We are at a loss of where to go from here.
September 09, 2004
1998 Chevrolet Blazer 4.3L Misfire, MIL Lamp on VIN: 1GNDT13W3W
P0300: Multiple Cylinder Misfire Detected. Blazer has a very severe loss of power due to misfires in cylinders #1, #5,& #6 at highway speeds in OD climbing a grade. It only manifests itself after a steady acceleration for 10 seconds or so. FP holds at near 60 psi during the power loss.If you allow ...
September 10, 2004
1998 Chevrolet K1500 Cheyenne 4.3L Surge, Misfire VIN: 1GCEK14W1X
P0300: Multiple Cylinder Misfire Detected. This vehicle has a misfire/buck only at 1800-2500 RPM in any gear. TPS range is around 10% or less at the specified RPM. Continuos code setting of PO300. Also noted during road test that cylinders 3 & 4 are the more dominant failures. 5 mile road test will...
September 13, 2004
1998 Chevrolet Blazer 4.3L Misfire, MIL Lamp on VIN: 1GNDT13W3W
P0300: Multiple Cylinder Misfire Detected. Blazer has a very severe loss of power due to misfires in cylinders #1, #5,& #6 at highway speeds in OD climbing a grade. It only manifests itself after a steady acceleration for 10 seconds or so. FP holds at near 60 psi during the power loss.If you allow ...
September 15, 2004
2000 Dodge Ram 3500 Van 5.9L Misfire VIN: 2B5WB35Z8Y
P0300: Multiple Cylinder Misfire Detected. as seen in the repair history we have covered all the basics. at this point i am at a loss.
September 17, 2004
1996 Geo Tracker 1.6L Misfire VIN: 2CNBE1360T
P0300: Multiple Engine Misfire Detected. ... light and drivability complaint. customer had a diagnosis from another shop of low compression. compression was checked and codes were pulled. our Sun 500 is on the fritz so we could not run on scope or check exhaust gases. vehicle has a miss upon accelera...
September 18, 2004
1996 Chevrolet C1500 5.7L Misfire, MIL Lamp on VIN: 1GCEC14R8T
P0300: Multiple Cylinder Misfire Detected. please help me on this one guys vehicle came in with po300 code multiple misfires, watching master tech it misfired at idle on #2,#3,and #8 and you can feel the vehicle misfiring. replaced tune up parts and fuel injector system. checked vacuum on engine checki...
September 22, 2004
1996 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13WT2
P0300: Multiple Cylinder Misfire Detected. ... to thanks for all techs out there helping solving this problem, I am run into this problem with vehicle drove into shop running misfiring with no power. Hookup scanner with trouble code P0300 Misfire Detect, Start check ignition systems, find out Cyls.2,4,...
September 23, 2004
1996 Chevrolet C2500 Cheyenne 5.7L Excessive Emissions, Poor Idle Quality, Misfire VIN: 2GCFC29R7T
P0300: Multiple Cylinder Misfire Detected. misfire on cylinders 3,5,7. fuel related. propane enrichment causes misfire to go away. replaced 3,5,7 injectors after fuel injection flush had no effect. 3 and 5 still misfiring. replaced injectors again, and replaced cap, wires and plugs. scope shows normal ...
September 24, 2004
1999 Isuzu Rodeo LS 3.2L Misfire, MIL Lamp on VIN: 4S2CM58W2X
P0300: Multiple Cylinder Misfire Detected. I sure hope there some nice Isuzu techs out there who can help me with this Rodeo . This of course is a new customer and this truck is giving me problems . BasicLY I cant find anything wrong, This truck will idle perfectly and drive down the road great but whe...
September 25, 2004
1999 Honda Prelude 2.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: THMBB615XX
P0300: Multiple Misfire Detected. Thanks for reading my post in advance. I have a 1999 Prelude Type SH that has a intermittant misfire condition. Most of the time it occurs when the car has been siting but it will occur when driving at times. Everything checks out fine. We have been through th...
September 28, 2004
2000 Toyota Echo 1.5L Misfire, MIL Lamp on VIN: JTDBT1235Y
P0300: Multiple Cylinder Misfire Detected. Car sets codes P0300 random misfire and P0171 lean mixture. Replaced all four spark plugs, and checked ign. coils and boots. All coils and boots looked OK. The O2 voltage drops to 0.00 at idle, but when you rev. the engine up the O2 sensor voltage moves up and...
September 28, 2004