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P0300 Diagnostic Trouble Code Discussion for September 2005

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
1995 Dodge Stratus 2.4L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1B3EJ46X9V
P0300: missfire. this car feels like a missfire at a stop sign,only after you drive for a little ways, the missfire counts will read 30-40 on #1,2,3 only at stop sign and 40 on #4 at accel from said stop sign,the ltft is -11 on cruise and if it acts up at stop it will read +10...
September 06, 2005
1996 Ford Windstar GL 3.8L Hesitation, Misfire VIN: 2FMDA5145T
P0300: Randam cylinder missfire. ... the P0300. The vehicle has new plugs and wires on it. We also have a cam sensor code P0340. The cam sensor and drive housing was replaced about 6 months / 4000 miles ago and it ran fine after its replacement. We rechecked ...
September 06, 2005
2001 GMC Savana 2500 5.0L Stall, Misfire, INT NO POWER VIN: 1GTFG25M51
P0300: Multiple Cylinder Misfire Detected. this is the van from hell it came in from anouther shop who replaced every thing they rebuilt the engine replaced inj spider cap rotor pluges wirers fuel pump and it still has an interminten skip also stalls and looses power sets [...] and p300 all interminten...
September 06, 2005
2001 Nissan Sentra GXE 1.8L Hesitation VIN: 3N1CB51D91
P0300: Multiple Misfire Detected. Well guys I went too look @ this one for a friend and was convinced it was a fuel pump(even though mileage is low). The car would not get out of its one way just bog and act like it wasn't getting enough fuel. Since I'm lookin @ this after work and had no fuel...
September 07, 2005
1999 Chevrolet Tahoe LS 5.7L Misfire, MIL Lamp on VIN: 1GNEC13RXX
P0300: Multiple Cylinder Misfire Detected. ... vehicle came to us 6 months ago with a P0300. This is the first one we ever converted from csfi to mfi per factory tsb 00-06-04-003b. We keep geting a P0300 after customer pulls a steep hill under load. We have replaced cap, rotor, plugs and wires and stil...
September 12, 2005
2001 Pontiac Aztek 3.4L Misfire VIN: 3G7DA03E21
P0300: Engine Misfire Detected. We replaced the intake gaskets on this vehicle. Then the customer returned saying the MIL was flashing and it was running poorly.We scanned it and found multiple misfires. we then replaced the wires and plugs. The misfire went to #1 cyl. We checked the coils a...
September 12, 2005
1998 Saab 900 S 2.3L Stall VIN: YS3DD58B5W
P0300: misfire. Got this Saab that sets a P1124 and P1128 codes (and others as well, see below). The car has poor idle quality both cold and warm and from time to time will stall out while crusing the highway. I think the crank sensor is bad due to the code P335 I pulled, b...
September 14, 2005
1999 Volkswagen Jetta GLS 2.0L Hesitation, Misfire, MIL Lamp on VIN: 3VWSA29M7X
P0300: random misfire. Came in for poor running complaint vehicle barly ran had no power and would not respond to throtle increase till vehile was warm.Replaced parts listed above. Problem was fixed vehicle ran fine for aproximatly one month vehicle is now back with similar complain...
September 16, 2005
1997 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13WXV
P0300: Multiple Cylinder Misfire Detected. vehicle idles poorly. starts to stink from running over rich in exhaust. lacks power. scanner shows missfire on cylinders 1,3,&5. no indication of regulator leaking. from experience this usually causes 2,4,6 cyl to missfire. fuel pressure does not leak dow...
September 19, 2005
1996 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13WXX
P0300: Multiple Cylinder Misfire Detected. OK this one is killing me. This 99 Blazer is running extremely rich on cylinders 2, 4 & 6. The bank 2 sensor 1 is reading lean and not switching thus causing the rich condition. Have replaced the O2 sensor with no results. The Long term fuel trim bank 1 is...
September 20, 2005
1999 Toyota Avalon XL 3.0L Surge, Misfire, MIL Lamp on VIN: 4T1BF18B0X
P0300: Multiple Cylinder Misfire Detected. This car has been in a couple of times for misfire codes. Found intake gasket leaking. Replace gaskets clear codes and let customer drive , code return after a short time.It seems to have active misfire counts when egr is on. please send ideas thanks for you t...
September 20, 2005
2002 Oldsmobile Aurora 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3GS64C22
P0300: Multiple Cylinder Misfire Detected. Hey gang, This Aurora came in with a MIL on and a misfire. The Tech 2 isolated the miss to #7 cyl. So I dived in and pulled the coil pack, plug and boots figuring I would find carbon tracking. No such luck, very clean. While I had it out I did a quick Ohm chec...
September 24, 2005
1997 Saab 900 SE Turbo 2.0L Misfire, stumble VIN: YS3DF78N9V
P0300: misfiring. more than one cilinder. dear iatn readers and writers.stuck on this car and i do not want to give up please help my.did change the dis cassete with four new(bcpr7es ngk )sparkplugs,crankshaft position sensor.map sensor,throttle position sensor,coolant temp sensor (the one between the...
September 25, 2005
1998 Isuzu Trooper S 3.5L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: JACDJ58X3W
P0300: Multiple Cylinder Misfire Detected. ... done it this time I in over my head again hopfully some of you Isuzu techs can help me. Vehicle came originally came in with check engine light on and customer complaint of surging, was not able to duplcate surging problem, check engine light was from the ...
September 26, 2005
1998 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGC1654WA
P0300: Multiple Misfire Detected. Any help or suggestions would be appreciated. Customers says after being hit and spun around the engine was making a different noise and running rough. The noise i would describe as valve lash with a deeper noise like a diesel. After pulling codes and verifyin...
September 27, 2005
1998 Isuzu Trooper S 3.5L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: JACDJ58X3W
P0300: Multiple Cylinder Misfire Detected. ... done it this time I in over my head again hopfully some of you Isuzu techs can help me. Vehicle came originally came in with check engine light on and customer complaint of surging, was not able to duplcate surging problem, check engine light was from the ...
September 27, 2005
2001 Dodge Ram 2500 Truck 5.9L Lack of power VIN: 1B7KF23Z81
P0300: Multiple Cylinder Misfire Detected. Customer states vehicle has a lack of power at highway speeds and towing.I road tested it,and it has a lack of power always.Accellerating leaving a stop,cruising in town.I have checked fuel pressure and volume.I have checked for plugged exhaust.I have checked ...
September 28, 2005
2000 Chevrolet Suburban 1500 LT 5.3L Cuts out, Misfire, MIL Lamp on VIN: 3GNFK16T6Y
P0300: Multiple Cylinder Misfire Detected. ... after failing the emissions test due to code: P0420 - low cat efficiency bank 1 - after testing and replacing the catalytic converter and both oxygen sensors (front & rear) on bank 1 the code P0420 low cat efficiency returns - customer has not returned...
September 29, 2005
1998 Dodge Neon High Line 2.0L Misfire VIN: 1P3ES47C4W
P0300: Multiple Cylinder Misfire Detected. Hello to all, this car has a very intermitant missfire mostly shows up with cyl four, but Ive had 1,2,4, misfire and multi missfire codes set. fuel presure good and no change when missfire happens,I found a tsb for broken springs but this thing will miss at an...
September 29, 2005
1996 Chevrolet K1500 Cheyenne 5.7L Hesitation VIN: 2GCEK19R9T
P0300: Multiple Cylinder Misfire Detected. no engine power at and near wot. engine runs but feels like converters plugged. ease off throttle and engine returns to a power plane and accelerates.replaced fuel pump and filter 1 month ago. cust experienced problem right after pump replacement and no fuel g...
September 30, 2005
2001 Mercedes-Benz ML320 3.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 4JGAB54E01
P0300: misfire or misfire harmful to twc. ... for almost a week straight. The vehicle was involved in an accident and three days after the repairs the vehicle started to act-up for the customer. It was hit in the front right corner. It originally came in with a rough idle and mil light on. The codes t...
September 30, 2005
1995 Dodge Stratus 2.4L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1B3EJ46X9V
P0300: missfire. this car feels like a missfire at a stop sign,only after you drive for a little ways, the missfire counts will read 30-40 on #1,2,3 only at stop sign and 40 on #4 at accel from said stop sign,the ltft is -11 on cruise and if it acts up at stop it will read +10...
September 06, 2005
1996 Ford Windstar GL 3.8L Hesitation, Misfire VIN: 2FMDA5145T
P0300: Randam cylinder missfire. ... the P0300. The vehicle has new plugs and wires on it. We also have a cam sensor code P0340. The cam sensor and drive housing was replaced about 6 months / 4000 miles ago and it ran fine after its replacement. We rechecked ...
September 06, 2005
2001 GMC Savana 2500 5.0L Stall, Misfire, INT NO POWER VIN: 1GTFG25M51
P0300: Multiple Cylinder Misfire Detected. this is the van from hell it came in from anouther shop who replaced every thing they rebuilt the engine replaced inj spider cap rotor pluges wirers fuel pump and it still has an interminten skip also stalls and looses power sets [...] and p300 all interminten...
September 06, 2005
2001 Nissan Sentra GXE 1.8L Hesitation VIN: 3N1CB51D91
P0300: Multiple Misfire Detected. Well guys I went too look @ this one for a friend and was convinced it was a fuel pump(even though mileage is low). The car would not get out of its one way just bog and act like it wasn't getting enough fuel. Since I'm lookin @ this after work and had no fuel...
September 07, 2005
1999 Chevrolet Tahoe LS 5.7L Misfire, MIL Lamp on VIN: 1GNEC13RXX
P0300: Multiple Cylinder Misfire Detected. ... vehicle came to us 6 months ago with a P0300. This is the first one we ever converted from csfi to mfi per factory tsb 00-06-04-003b. We keep geting a P0300 after customer pulls a steep hill under load. We have replaced cap, rotor, plugs and wires and stil...
September 12, 2005
2001 Pontiac Aztek 3.4L Misfire VIN: 3G7DA03E21
P0300: Engine Misfire Detected. We replaced the intake gaskets on this vehicle. Then the customer returned saying the MIL was flashing and it was running poorly.We scanned it and found multiple misfires. we then replaced the wires and plugs. The misfire went to #1 cyl. We checked the coils a...
September 12, 2005
1998 Saab 900 S 2.3L Stall VIN: YS3DD58B5W
P0300: misfire. Got this Saab that sets a P1124 and P1128 codes (and others as well, see below). The car has poor idle quality both cold and warm and from time to time will stall out while crusing the highway. I think the crank sensor is bad due to the code P335 I pulled, b...
September 14, 2005
1999 Volkswagen Jetta GLS 2.0L Hesitation, Misfire, MIL Lamp on VIN: 3VWSA29M7X
P0300: random misfire. Came in for poor running complaint vehicle barly ran had no power and would not respond to throtle increase till vehile was warm.Replaced parts listed above. Problem was fixed vehicle ran fine for aproximatly one month vehicle is now back with similar complain...
September 16, 2005
1997 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13WXV
P0300: Multiple Cylinder Misfire Detected. vehicle idles poorly. starts to stink from running over rich in exhaust. lacks power. scanner shows missfire on cylinders 1,3,&5. no indication of regulator leaking. from experience this usually causes 2,4,6 cyl to missfire. fuel pressure does not leak dow...
September 19, 2005
1996 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13WXX
P0300: Multiple Cylinder Misfire Detected. OK this one is killing me. This 99 Blazer is running extremely rich on cylinders 2, 4 & 6. The bank 2 sensor 1 is reading lean and not switching thus causing the rich condition. Have replaced the O2 sensor with no results. The Long term fuel trim bank 1 is...
September 20, 2005
1999 Toyota Avalon XL 3.0L Surge, Misfire, MIL Lamp on VIN: 4T1BF18B0X
P0300: Multiple Cylinder Misfire Detected. This car has been in a couple of times for misfire codes. Found intake gasket leaking. Replace gaskets clear codes and let customer drive , code return after a short time.It seems to have active misfire counts when egr is on. please send ideas thanks for you t...
September 20, 2005
2002 Oldsmobile Aurora 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3GS64C22
P0300: Multiple Cylinder Misfire Detected. Hey gang, This Aurora came in with a MIL on and a misfire. The Tech 2 isolated the miss to #7 cyl. So I dived in and pulled the coil pack, plug and boots figuring I would find carbon tracking. No such luck, very clean. While I had it out I did a quick Ohm chec...
September 24, 2005
1997 Saab 900 SE Turbo 2.0L Misfire, stumble VIN: YS3DF78N9V
P0300: misfiring. more than one cilinder. dear iatn readers and writers.stuck on this car and i do not want to give up please help my.did change the dis cassete with four new(bcpr7es ngk )sparkplugs,crankshaft position sensor.map sensor,throttle position sensor,coolant temp sensor (the one between the...
September 25, 2005
1998 Isuzu Trooper S 3.5L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: JACDJ58X3W
P0300: Multiple Cylinder Misfire Detected. ... done it this time I in over my head again hopfully some of you Isuzu techs can help me. Vehicle came originally came in with check engine light on and customer complaint of surging, was not able to duplcate surging problem, check engine light was from the ...
September 26, 2005
1998 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGC1654WA
P0300: Multiple Misfire Detected. Any help or suggestions would be appreciated. Customers says after being hit and spun around the engine was making a different noise and running rough. The noise i would describe as valve lash with a deeper noise like a diesel. After pulling codes and verifyin...
September 27, 2005
1998 Isuzu Trooper S 3.5L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on VIN: JACDJ58X3W
P0300: Multiple Cylinder Misfire Detected. ... done it this time I in over my head again hopfully some of you Isuzu techs can help me. Vehicle came originally came in with check engine light on and customer complaint of surging, was not able to duplcate surging problem, check engine light was from the ...
September 27, 2005
2001 Dodge Ram 2500 Truck 5.9L Lack of power VIN: 1B7KF23Z81
P0300: Multiple Cylinder Misfire Detected. Customer states vehicle has a lack of power at highway speeds and towing.I road tested it,and it has a lack of power always.Accellerating leaving a stop,cruising in town.I have checked fuel pressure and volume.I have checked for plugged exhaust.I have checked ...
September 28, 2005
2000 Chevrolet Suburban 1500 LT 5.3L Cuts out, Misfire, MIL Lamp on VIN: 3GNFK16T6Y
P0300: Multiple Cylinder Misfire Detected. ... after failing the emissions test due to code: P0420 - low cat efficiency bank 1 - after testing and replacing the catalytic converter and both oxygen sensors (front & rear) on bank 1 the code P0420 low cat efficiency returns - customer has not returned...
September 29, 2005
1998 Dodge Neon High Line 2.0L Misfire VIN: 1P3ES47C4W
P0300: Multiple Cylinder Misfire Detected. Hello to all, this car has a very intermitant missfire mostly shows up with cyl four, but Ive had 1,2,4, misfire and multi missfire codes set. fuel presure good and no change when missfire happens,I found a tsb for broken springs but this thing will miss at an...
September 29, 2005
1996 Chevrolet K1500 Cheyenne 5.7L Hesitation VIN: 2GCEK19R9T
P0300: Multiple Cylinder Misfire Detected. no engine power at and near wot. engine runs but feels like converters plugged. ease off throttle and engine returns to a power plane and accelerates.replaced fuel pump and filter 1 month ago. cust experienced problem right after pump replacement and no fuel g...
September 30, 2005
2001 Mercedes-Benz ML320 3.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 4JGAB54E01
P0300: misfire or misfire harmful to twc. ... for almost a week straight. The vehicle was involved in an accident and three days after the repairs the vehicle started to act-up for the customer. It was hit in the front right corner. It originally came in with a rough idle and mil light on. The codes t...
September 30, 2005