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P0300 Diagnostic Trouble Code Discussion for May 2010

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2002 Toyota Corolla CE 1.8L Hesitation, Cuts out VIN: 1NXBR12E92
P0300: Multiple Cylinder Misfire Detected. Toyota techs i need your help.this corolla came to us after another shop could not fix her problem.originally it had a misfire and hesitation off idle while accelerating,po300 and fuel trims were +25. Replaced fuel injectors because the inlet screens were torn...
May 03, 2010
2000 Saturn LS2 3.0L No Start, Hard Start/Noise VIN: 1G8JW52R6Y
P0300: Random Misfire Detected. ... just died CEL had never been on before. Found code P0343 and in the process of checking the CPS readings on the Solus Pro the engine br1efly started with a loud clanging banging noise. Engine will occasionally start, run rough and die, knocking badly. Look...
May 04, 2010
2002 Toyota Corolla CE 1.8L Hesitation, Cuts out VIN: 1NXBR12E92
P0300: Multiple Cylinder Misfire Detected. Toyota techs i need your help.this corolla came to us after another shop could not fix her problem.originally it had a misfire and hesitation off idle while accelerating,po300 and fuel trims were +25. Replaced fuel injectors because the inlet screens were torn...
May 04, 2010
2004 Chrysler PT Cruiser 2.4L MIL Lamp on VIN: 3C8FY68814
P0300: Multiple Cylinder Misfire Detected. hi everyone, i need help with this pt. vehicle runs good but has codes for both oxygen sensor heater, inspected all powers and grounds and foun no problems, clear all codes and road testd vehicle and give back to customer, and few day later the o2 heater codes...
May 05, 2010
1997 Isuzu Hombre S 2.2L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1GGCS1442V
P0300: Multiple Cylinder Misfire Detected. This Hombre came in to us running very poorly. Idles rough and drives very poorly. Feels like going into limp mode, however that is not the case. We have pulled the exhaust off, replaced MAP, EGR, Plugs, checked fuel pressure, smoked intake manifold and Fuel I...
May 05, 2010
2001 Oldsmobile Aurora 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3GR62H61
P0300: Multiple Cylinder Misfire Detected. came in with poor idle and ses on some times it was off at this time found #5 misfire only at idle swaped coil plug boot and injector still misfiring on 5 has only 10% leakdown i am lost now please help
May 05, 2010
2000 Dodge Ram 1500 Van 3.9L Cuts out, Misfire, MIL Lamp on VIN: 2B6HB11X6Y
P0300: Multiple Cylinder Misfire Detected. ... is pretty cool so far but I'm the one who is losing it. I got this '00 Ram Van 3.9L A/T that when at cruise @ about 70mph ocasionaly it will start to what fells like a misfire, not continuously but off and on, and sometimes when he is backing out of his dr...
May 07, 2010
2001 Chevrolet Silverado 2500 HD 8.1L Hesitation VIN: 1GCHC23G01
P0300: Multiple Cylinder Misfire Detected. Hello iatn universe and thank you for the help in advance. This problem child has me stumped. Fuel system is virtually brand new. New delco pump, regulator and fuel filter. All injectors ohm at spec ( 11-14 ohms ). Maf is good and so is map. This truck under a...
May 10, 2010
2004 Dodge Dakota 3.7L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1D7GG16K84
P0300: Multiple Misfire Detected. ... problem before. We sold this truck Friday mourning and nothing was wrong with this truck. We got gas before it left. In the afternoon it came back in missing and the check engine light on and code P0300 in history and 1 ...
May 10, 2010
2006 Hyundai Sonata GLS 3.3L Cuts out, Misfire, MIL Lamp on VIN: 5NPEU46FX6
P0300: Multiple Misfire Detected. ... intermittent. He put in new spark plugs, and the car seemed fine, in fact he drove to Florida and back with no problems (3000 miles). Now that he is back the car started to miss again, and the SES is now on with a P0300,...
May 10, 2010
2002 GMC Sierra 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1G23687916
P0300: Multiple Cylinder Misfire Detected. Vehicle only missed at highway speeds under a load. Misses between 65 and 75 MPH. Cylinder 1 and 6 are the only cylinders missing. Runs great without misses at lower and higher speeds.
May 11, 2010
2005 Volkswagen Beetle GLS 1.8L Misfire, MIL Lamp on VIN: 3VWCD31Y05
P0300: Random multiple cylinder misfire. Vehicle came in with MIL lamp on. Found misfire codes stored in computer. Knowing the coil packs had been replaced with the newly designed VW coil packs, and with no performance issues found in any condition, we replaced the 4 plugs due to visable wear and cle...
May 11, 2010
2002 GMC Sierra 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1G23687916
P0300: Multiple Cylinder Misfire Detected. Vehicle only missed at highway speeds under a load. Misses between 65 and 75 MPH. Cylinder 1 and 6 are the only cylinders missing. Runs great without misses at lower and higher speeds.
May 12, 2010
2000 Infiniti I30 3.0L Hesitation, Misfire VIN: JNKCA31AXY
P0300: Multiple Misfire Detected. ... with shakes and runs rough - scanned it then and had misfire codes - after diag and research we replaced 6 coils and 6 spark plugs and it has ran good since. Customer brought it back today with hesitation under acceleration. We verified the concern - scann...
May 12, 2010
2001 Volkswagen Beetle GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWED21C01
P0300: Random misfire detected. First time post, here we go... This Volkswagen Beetle will run great off idle, never a light or concern. Idle is when the fun begins. After bringing engine to operating temp or after a hot soak, you pull up to a stop and the idle will pick up from 840 rpm to 1...
May 12, 2010
1997 Chevrolet Venture 3.4L MIL Lamp on VIN: 1GNDX03E4V
P0300: Multiple Cylinder Misfire Detected. ... customer took it after the original repair and came back about 3 weeks later with both the p0300 and p1870 code. So we changed the valve body just to be sure we didnt have a problem with the trans. And we just cleared the p0300 code just hoping it was a gl...
May 13, 2010
2003 Chevrolet Corvette 50th Anniversary Edition 5.7L MIL Lamp on VIN: 1G1YY22G53
P0300: Multiple Engine Misfire Detected. ... shop this morning. The owners complaint is that the mil comes on at times and flashes at times. The only code in the system is a P0300, did check in all available fail records as well. In the stall, at idle and under a load the engine did not misfire, and ...
May 13, 2010
2001 Mazda Protege DX 1.6L Poor Idle Quality, Misfire VIN: JM1BJ22541
P0300: Multiple Misfire Detected. ... cylinders not on same coil and random misfire. Tuned up and cleared codes. Came back with complaint of stalling when cold and idling too high when warm. Removed and cleaned idle air control. Car came back with complaint of occasional misfire and check engi...
May 13, 2010
2001 Buick LeSabre Limited 3.8L MIL Lamp on VIN: 1G4HP54K41
P0300: Multiple Engine Misfire Detected. ... weeks now. it keeps throwing a p0300 code, i hooked up my modis and found that the missfire count high on cyl 3 and 6. i changed the coil pack and rechanged the wires with same code. iv tried to do the ckp relearn but it wont go past the accel to full thro...
May 17, 2010
2001 Chevrolet Silverado 2500 HD 8.1L Hesitation VIN: 1GCHC23G01
P0300: Multiple Cylinder Misfire Detected. Hello iatn universe and thank you for the help in advance. This problem child has me stumped. Fuel system is virtually brand new. New delco pump, regulator and fuel filter. All injectors ohm at spec ( 11-14 ohms ). Maf is good and so is map. This truck under a...
May 17, 2010
1996 Jaguar XJS 2 2 4.0L Excessive Emissions, Poor Idle Quality, Misfire VIN: SAJNX2748T
P0300: Random Misfire Detected. This car came to me for an extremely rough run and NO power. I found the engine was running extremely rich and the AMM registered very low g/s of flow. I'm sorry for the long post, I just want to provide as much info of what I've done as possible so I don't ...
May 17, 2010
2001 Buick LeSabre Limited 3.8L MIL Lamp on VIN: 1G4HP54K41
P0300: Multiple Engine Misfire Detected. ... weeks now. it keeps throwing a p0300 code, i hooked up my modis and found that the missfire count high on cyl 3 and 6. i changed the coil pack and rechanged the wires with same code. iv tried to do the ckp relearn but it wont go past the accel to full thro...
May 18, 2010
2002 Jaguar X-Type 3.0L Misfire VIN: SAJEA53C32
P0300: Random/multiple misfire detected. Good evening, We have this Jaguar in the shop that we just replaced the head gaskets on. All went well, timed the cam shafts per the procedure in Mitchell (as best as possible engine in car), started engine, sounds good but there is a rough idle, the check en...
May 18, 2010
2004 Kia Sorento LX 3.5L MIL Lamp on VIN: KNDJC733X4
P0300: Multiple Misfire Detected. Vehicle came in from another shop who replaced a cylinder head on bank2 also replaced a crank sensor along with a timing belt. Soon after vehcile has an intermiten p0303 misfire number 3 cyl so far vehcile has new plugs wires and coils. Compression test within...
May 18, 2010
2001 Nissan Pathfinder SE 3.5L Hesitation, Cuts out, Misfire VIN: JN8DR07Y81
P0300: Multiple Misfire Detected. This one seems like a mass air flow sensor, but we cannot get it to check bad. Vehicle will bog down and not accelerate above 3000 rpm with no acceleration under load. Voltage side of MAF scoped well, but showed higher than we like on ground side (35 millivolt...
May 18, 2010
2004 Kia Sorento LX 3.5L MIL Lamp on VIN: KNDJC733X4
P0300: Multiple Misfire Detected. Vehicle came in from another shop who replaced a cylinder head on bank2 also replaced a crank sensor along with a timing belt. Soon after vehcile has an intermiten p0303 misfire number 3 cyl so far vehcile has new plugs wires and coils. Compression test within...
May 19, 2010
1997 Chevrolet Express 1500 4.3L Misfire VIN: 1GCEG15W9V
P0300: Multiple Cylinder Misfire Detected. He has been fighting this intermittent miss for almost a year. First time in my shop. Others have repeatedly replaced plugs, wires, cap, rotor, fuel filter, cam sensor in distributor, ign. module. etc. It will intermittently miss, but almost guaranteed to miss...
May 20, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0300: Multiple Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 20, 2010
2005 Infiniti G35 3.5L Misfire VIN: JNKCVS1E05
P0300: Multiple Misfire Detected. Feels like a dead miss. Cly balance test #5 and #6 low performance. Switch coils and plugs still has misfire on #5 and #6 holes. Has good spark from all the coils. Compression and leak down test showed good. Smoke test showed no leak. All the injectors ohmed a...
May 20, 2010
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality VIN: WVWPD63B63
... Vehicle has a "choppey" idle & a reaccurring p1479 p300. I replaced the ect (po118), plugs (needed) & tried a maf sensor (factory vw). Still a bad idle that smooths out at above 1500 rpm going down the road...
May 20, 2010
2002 Chevrolet Express 3500 5.7L Misfire, MIL Lamp on VIN: 1GCHG35R02
P0300: Multiple Cylinder Misfire Detected. Help! I have a friends van I was supposed to do brakes and a tune up , picked up van drove it home ran fine, but smelled antifreeze, did brakes heatercore and test drove ran terrible misfire lean back fires, checked egr, broken replaced stiil missing,pull plug...
May 21, 2010
1996 Ford F-150 XL 5.0L Misfire VIN: 2FTEF15N0T
P0300: Random misfire. Truck came in about a month ago, not running. MANY new parts fitted. I diagnosed it as bad cam sensor inside distributor. Replaced distributor with new. Truck started and left. Customer returned saying engine was misfiring. Using IDS saw very prominent misfire...
May 21, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0300: Multiple Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 21, 2010
2001 Pontiac Montana 3.4L Poor Idle Quality VIN: 1G567T3435
P0300: Multiple Cylinder Misfire Detected. ... back went through a rain storm and ever since has had missfire at idle. I scanned vehicle and shows random misfire p0300 went into missfire data and shows mainly on cylinder 5 takes a long time to set light but does after about 4 drive cycles.also relearne...
May 23, 2010
2002 Saturn SL 1.9L Misfire, MIL Lamp on VIN: 1G8ZF52862
P0300: Random Misfire Detected. This saturn come in with an apparent missfire in cylinder # 4. After some diagnosing it is found that coil pack for # 1&4 is bad. replaced it and car ran great. After the weekend the pile was back with a missfire. This time it seemed a little worse. scanne...
May 25, 2010
1996 Jaguar XJS 2 2 4.0L Excessive Emissions, Poor Idle Quality, Misfire VIN: SAJNX2748T
P0300: Random Misfire Detected. This car came to me for an extremely rough run and NO power. I found the engine was running extremely rich and the AMM registered very low g/s of flow. I'm sorry for the long post, I just want to provide as much info of what I've done as possible so I don't ...
May 26, 2010
2001 Kia Sportage 2.0L Hesitation, Misfire, MIL Lamp on VIN: KNDJA72301
P0300: Random Cylinder Misfire Detected. This vehicle came to us from another shop. Customer said it was running rough when they took it in to the other shop. They replaced the spark plugs and cleared misfire codes. Customer said it was ok for a couple of days. Then they replaced all 4 coils and it w...
May 26, 2010
2002 Toyota Corolla CE 1.8L Hesitation, Cuts out VIN: 1NXBR12E92
P0300: Multiple Cylinder Misfire Detected. Toyota techs i need your help.this corolla came to us after another shop could not fix her problem.originally it had a misfire and hesitation off idle while accelerating,po300 and fuel trims were +25. Replaced fuel injectors because the inlet screens were torn...
May 03, 2010
2000 Saturn LS2 3.0L No Start, Hard Start/Noise VIN: 1G8JW52R6Y
P0300: Random Misfire Detected. ... just died CEL had never been on before. Found code P0343 and in the process of checking the CPS readings on the Solus Pro the engine br1efly started with a loud clanging banging noise. Engine will occasionally start, run rough and die, knocking badly. Look...
May 04, 2010
2002 Toyota Corolla CE 1.8L Hesitation, Cuts out VIN: 1NXBR12E92
P0300: Multiple Cylinder Misfire Detected. Toyota techs i need your help.this corolla came to us after another shop could not fix her problem.originally it had a misfire and hesitation off idle while accelerating,po300 and fuel trims were +25. Replaced fuel injectors because the inlet screens were torn...
May 04, 2010
2004 Chrysler PT Cruiser 2.4L MIL Lamp on VIN: 3C8FY68814
P0300: Multiple Cylinder Misfire Detected. hi everyone, i need help with this pt. vehicle runs good but has codes for both oxygen sensor heater, inspected all powers and grounds and foun no problems, clear all codes and road testd vehicle and give back to customer, and few day later the o2 heater codes...
May 05, 2010
1997 Isuzu Hombre S 2.2L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1GGCS1442V
P0300: Multiple Cylinder Misfire Detected. This Hombre came in to us running very poorly. Idles rough and drives very poorly. Feels like going into limp mode, however that is not the case. We have pulled the exhaust off, replaced MAP, EGR, Plugs, checked fuel pressure, smoked intake manifold and Fuel I...
May 05, 2010
2001 Oldsmobile Aurora 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3GR62H61
P0300: Multiple Cylinder Misfire Detected. came in with poor idle and ses on some times it was off at this time found #5 misfire only at idle swaped coil plug boot and injector still misfiring on 5 has only 10% leakdown i am lost now please help
May 05, 2010
2000 Dodge Ram 1500 Van 3.9L Cuts out, Misfire, MIL Lamp on VIN: 2B6HB11X6Y
P0300: Multiple Cylinder Misfire Detected. ... is pretty cool so far but I'm the one who is losing it. I got this '00 Ram Van 3.9L A/T that when at cruise @ about 70mph ocasionaly it will start to what fells like a misfire, not continuously but off and on, and sometimes when he is backing out of his dr...
May 07, 2010
2001 Chevrolet Silverado 2500 HD 8.1L Hesitation VIN: 1GCHC23G01
P0300: Multiple Cylinder Misfire Detected. Hello iatn universe and thank you for the help in advance. This problem child has me stumped. Fuel system is virtually brand new. New delco pump, regulator and fuel filter. All injectors ohm at spec ( 11-14 ohms ). Maf is good and so is map. This truck under a...
May 10, 2010
2004 Dodge Dakota 3.7L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1D7GG16K84
P0300: Multiple Misfire Detected. ... problem before. We sold this truck Friday mourning and nothing was wrong with this truck. We got gas before it left. In the afternoon it came back in missing and the check engine light on and code P0300 in history and 1 ...
May 10, 2010
2006 Hyundai Sonata GLS 3.3L Cuts out, Misfire, MIL Lamp on VIN: 5NPEU46FX6
P0300: Multiple Misfire Detected. ... intermittent. He put in new spark plugs, and the car seemed fine, in fact he drove to Florida and back with no problems (3000 miles). Now that he is back the car started to miss again, and the SES is now on with a P0300,...
May 10, 2010
2002 GMC Sierra 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1G23687916
P0300: Multiple Cylinder Misfire Detected. Vehicle only missed at highway speeds under a load. Misses between 65 and 75 MPH. Cylinder 1 and 6 are the only cylinders missing. Runs great without misses at lower and higher speeds.
May 11, 2010
2005 Volkswagen Beetle GLS 1.8L Misfire, MIL Lamp on VIN: 3VWCD31Y05
P0300: Random multiple cylinder misfire. Vehicle came in with MIL lamp on. Found misfire codes stored in computer. Knowing the coil packs had been replaced with the newly designed VW coil packs, and with no performance issues found in any condition, we replaced the 4 plugs due to visable wear and cle...
May 11, 2010
2002 GMC Sierra 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1G23687916
P0300: Multiple Cylinder Misfire Detected. Vehicle only missed at highway speeds under a load. Misses between 65 and 75 MPH. Cylinder 1 and 6 are the only cylinders missing. Runs great without misses at lower and higher speeds.
May 12, 2010
2000 Infiniti I30 3.0L Hesitation, Misfire VIN: JNKCA31AXY
P0300: Multiple Misfire Detected. ... with shakes and runs rough - scanned it then and had misfire codes - after diag and research we replaced 6 coils and 6 spark plugs and it has ran good since. Customer brought it back today with hesitation under acceleration. We verified the concern - scann...
May 12, 2010
2001 Volkswagen Beetle GLS 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWED21C01
P0300: Random misfire detected. First time post, here we go... This Volkswagen Beetle will run great off idle, never a light or concern. Idle is when the fun begins. After bringing engine to operating temp or after a hot soak, you pull up to a stop and the idle will pick up from 840 rpm to 1...
May 12, 2010
1997 Chevrolet Venture 3.4L MIL Lamp on VIN: 1GNDX03E4V
P0300: Multiple Cylinder Misfire Detected. ... customer took it after the original repair and came back about 3 weeks later with both the p0300 and p1870 code. So we changed the valve body just to be sure we didnt have a problem with the trans. And we just cleared the p0300 code just hoping it was a gl...
May 13, 2010
2003 Chevrolet Corvette 50th Anniversary Edition 5.7L MIL Lamp on VIN: 1G1YY22G53
P0300: Multiple Engine Misfire Detected. ... shop this morning. The owners complaint is that the mil comes on at times and flashes at times. The only code in the system is a P0300, did check in all available fail records as well. In the stall, at idle and under a load the engine did not misfire, and ...
May 13, 2010
2001 Mazda Protege DX 1.6L Poor Idle Quality, Misfire VIN: JM1BJ22541
P0300: Multiple Misfire Detected. ... cylinders not on same coil and random misfire. Tuned up and cleared codes. Came back with complaint of stalling when cold and idling too high when warm. Removed and cleaned idle air control. Car came back with complaint of occasional misfire and check engi...
May 13, 2010
2001 Buick LeSabre Limited 3.8L MIL Lamp on VIN: 1G4HP54K41
P0300: Multiple Engine Misfire Detected. ... weeks now. it keeps throwing a p0300 code, i hooked up my modis and found that the missfire count high on cyl 3 and 6. i changed the coil pack and rechanged the wires with same code. iv tried to do the ckp relearn but it wont go past the accel to full thro...
May 17, 2010
2001 Chevrolet Silverado 2500 HD 8.1L Hesitation VIN: 1GCHC23G01
P0300: Multiple Cylinder Misfire Detected. Hello iatn universe and thank you for the help in advance. This problem child has me stumped. Fuel system is virtually brand new. New delco pump, regulator and fuel filter. All injectors ohm at spec ( 11-14 ohms ). Maf is good and so is map. This truck under a...
May 17, 2010
1996 Jaguar XJS 2 2 4.0L Excessive Emissions, Poor Idle Quality, Misfire VIN: SAJNX2748T
P0300: Random Misfire Detected. This car came to me for an extremely rough run and NO power. I found the engine was running extremely rich and the AMM registered very low g/s of flow. I'm sorry for the long post, I just want to provide as much info of what I've done as possible so I don't ...
May 17, 2010
2001 Buick LeSabre Limited 3.8L MIL Lamp on VIN: 1G4HP54K41
P0300: Multiple Engine Misfire Detected. ... weeks now. it keeps throwing a p0300 code, i hooked up my modis and found that the missfire count high on cyl 3 and 6. i changed the coil pack and rechanged the wires with same code. iv tried to do the ckp relearn but it wont go past the accel to full thro...
May 18, 2010
2002 Jaguar X-Type 3.0L Misfire VIN: SAJEA53C32
P0300: Random/multiple misfire detected. Good evening, We have this Jaguar in the shop that we just replaced the head gaskets on. All went well, timed the cam shafts per the procedure in Mitchell (as best as possible engine in car), started engine, sounds good but there is a rough idle, the check en...
May 18, 2010
2004 Kia Sorento LX 3.5L MIL Lamp on VIN: KNDJC733X4
P0300: Multiple Misfire Detected. Vehicle came in from another shop who replaced a cylinder head on bank2 also replaced a crank sensor along with a timing belt. Soon after vehcile has an intermiten p0303 misfire number 3 cyl so far vehcile has new plugs wires and coils. Compression test within...
May 18, 2010
2001 Nissan Pathfinder SE 3.5L Hesitation, Cuts out, Misfire VIN: JN8DR07Y81
P0300: Multiple Misfire Detected. This one seems like a mass air flow sensor, but we cannot get it to check bad. Vehicle will bog down and not accelerate above 3000 rpm with no acceleration under load. Voltage side of MAF scoped well, but showed higher than we like on ground side (35 millivolt...
May 18, 2010
2004 Kia Sorento LX 3.5L MIL Lamp on VIN: KNDJC733X4
P0300: Multiple Misfire Detected. Vehicle came in from another shop who replaced a cylinder head on bank2 also replaced a crank sensor along with a timing belt. Soon after vehcile has an intermiten p0303 misfire number 3 cyl so far vehcile has new plugs wires and coils. Compression test within...
May 19, 2010
1997 Chevrolet Express 1500 4.3L Misfire VIN: 1GCEG15W9V
P0300: Multiple Cylinder Misfire Detected. He has been fighting this intermittent miss for almost a year. First time in my shop. Others have repeatedly replaced plugs, wires, cap, rotor, fuel filter, cam sensor in distributor, ign. module. etc. It will intermittently miss, but almost guaranteed to miss...
May 20, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0300: Multiple Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 20, 2010
2005 Infiniti G35 3.5L Misfire VIN: JNKCVS1E05
P0300: Multiple Misfire Detected. Feels like a dead miss. Cly balance test #5 and #6 low performance. Switch coils and plugs still has misfire on #5 and #6 holes. Has good spark from all the coils. Compression and leak down test showed good. Smoke test showed no leak. All the injectors ohmed a...
May 20, 2010
2003 Volkswagen Passat GLS 1.8L Poor Idle Quality VIN: WVWPD63B63
... Vehicle has a "choppey" idle & a reaccurring p1479 p300. I replaced the ect (po118), plugs (needed) & tried a maf sensor (factory vw). Still a bad idle that smooths out at above 1500 rpm going down the road...
May 20, 2010
2002 Chevrolet Express 3500 5.7L Misfire, MIL Lamp on VIN: 1GCHG35R02
P0300: Multiple Cylinder Misfire Detected. Help! I have a friends van I was supposed to do brakes and a tune up , picked up van drove it home ran fine, but smelled antifreeze, did brakes heatercore and test drove ran terrible misfire lean back fires, checked egr, broken replaced stiil missing,pull plug...
May 21, 2010
1996 Ford F-150 XL 5.0L Misfire VIN: 2FTEF15N0T
P0300: Random misfire. Truck came in about a month ago, not running. MANY new parts fitted. I diagnosed it as bad cam sensor inside distributor. Replaced distributor with new. Truck started and left. Customer returned saying engine was misfiring. Using IDS saw very prominent misfire...
May 21, 2010
1999 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 621H572888
P0300: Multiple Misfire Detected. ... cylinders except for number 2. FF is stored for P0303 @753 RPM, ECT 203F, Closed Loop, Load 27.1% STFT 6.3% and LTFT 5.5%, TP 9.8% Misfire is constant @ idle and cruise, higher speed it'll clear up a little but still not...
May 21, 2010
2001 Pontiac Montana 3.4L Poor Idle Quality VIN: 1G567T3435
P0300: Multiple Cylinder Misfire Detected. ... back went through a rain storm and ever since has had missfire at idle. I scanned vehicle and shows random misfire p0300 went into missfire data and shows mainly on cylinder 5 takes a long time to set light but does after about 4 drive cycles.also relearne...
May 23, 2010
2002 Saturn SL 1.9L Misfire, MIL Lamp on VIN: 1G8ZF52862
P0300: Random Misfire Detected. This saturn come in with an apparent missfire in cylinder # 4. After some diagnosing it is found that coil pack for # 1&4 is bad. replaced it and car ran great. After the weekend the pile was back with a missfire. This time it seemed a little worse. scanne...
May 25, 2010
1996 Jaguar XJS 2 2 4.0L Excessive Emissions, Poor Idle Quality, Misfire VIN: SAJNX2748T
P0300: Random Misfire Detected. This car came to me for an extremely rough run and NO power. I found the engine was running extremely rich and the AMM registered very low g/s of flow. I'm sorry for the long post, I just want to provide as much info of what I've done as possible so I don't ...
May 26, 2010
2001 Kia Sportage 2.0L Hesitation, Misfire, MIL Lamp on VIN: KNDJA72301
P0300: Random Cylinder Misfire Detected. This vehicle came to us from another shop. Customer said it was running rough when they took it in to the other shop. They replaced the spark plugs and cleared misfire codes. Customer said it was ok for a couple of days. Then they replaced all 4 coils and it w...
May 26, 2010