P0300 Diagnostic Trouble Code Discussion for January 2006
Multiple Misfire Detected
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| Help Request | Posted | |
| 2003 Hummer H2 6.0L Misfire, MIL Lamp on VIN: 5GRGN23U93 P0300: Multiple Cylinder Misfire Detected. customer stated engine miss and loud knocking check engine lite is on when i got the car and started it up there was a verry loud knocking that sounded like it was comming from the bell housing area checked for missing torque converter bolts all were tight noi... |
January 03, 2006 | |
| 1997 Nissan Maxima GLE 3.0L No Start, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: JN1CA21D7V P0300: Multiple Misfire Detected. hey guys, i hope a few of you have run accross this p.o.s of a car... the car came in a week ago from another shop with a new maf sensor ,to address the long hard start cold, worse when warm. but, i keep getting a po 300 after a hour of idleing. driving the ca... |
January 07, 2006 | |
| 1995 Dodge Neon 2.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3P3ES47CXT P0300: multiple cylinder misfire. Hello everyone. I have a 95 neon here that is misfiring on cylinders 1 and 4 at all times. I have tried plugs and wires, but to no avail. Checked timing marks on belt and seems to be okay, but, is there an arrow denoting the cam alignment? I only saw a notch i... |
January 09, 2006 | |
| 2002 Chevrolet Tahoe LS 5.3L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNEK13Z72 P0300: Multiple Cylinder Misfire Detected. hello this 02 tahoe is a flex fuel truck ,it came to us running very rough and blowing black smoke . I pulled codes and it had the codes ,I posted up top 1,3 5 7 cyl mis all on bank 1 .We did a smoke test for intake leak none found , checked fuel pressure seem... |
January 10, 2006 | |
| 2000 GMC Yukon XL 1500 SLE 5.3L Misfire VIN: 3GKFK16T9Y P0300: Multiple Cylinder Misfire Detected. This vehicle has had intermittent PO300 random misfire for a couple weeks. Scanner shows #7 & #8 cylinders to be misfiring. Misfire can be felt occassionally for short periods. Have performed "related repair history" to try & correct this probl... |
January 10, 2006 | |
| 2001 Pontiac Sunfire SE 2.2L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G2JB12401 P0300: Multiple Engine Misfire Detected. ... times. each time it leaves we think we have it whipped. we have also changed a b wire at the alternator. when the problem occurs it has trouble restarting and runs bad. the next morning it will run fine. ??? the code p0300 comes back when the problem occur... |
January 10, 2006 | |
| 1999 Chevrolet Blazer 4.3L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1GNCS13W6X P0300: Multiple Cylinder Misfire Detected. ... my customer brings his Benz here and called me about his frustrating problem. The vehicle continues to set a random missfire code. I got the vehicle yesterday and proceeded with basic missfire diagnostics. CEL was not on, but there was a freeze frame with ... |
January 11, 2006 | |
| 2001 Chevrolet Silverado 2500 6.0L Misfire VIN: 1GCHK29UT1 P0300: Multiple Cylinder Misfire Detected. Hey guys, Got a Chevy here thats a little odd. We replaced the engine in this truck and have had a missfire since then. It is a fleet vehicle so no one knows if it is a preexisting problem or not. We flushed the injectors, that lasted for 2 weeks then #4 miss ... |
January 11, 2006 | |
| 2002 Chevrolet Express 2500 5.7L No Start VIN: 1GCGG25RX2 P0300: Multiple Cylinder Misfire Detected. Vehicle was towed in crank no start found water in distributor cap no external cause,have recently found this problem in many other gm v6 and v8 engines,one email suggested the problem is from the distributor vent and that he is going to try blocking it off,my... |
January 11, 2006 | |
| 2000 Mercedes-Benz ML320 3.2L Misfire, MIL Lamp on VIN: 4JGAB54E2Y P0300: Random/Mult Misfire Detected. ... It keep setting Code p0304, I can seem to get it to happen when accelerating on to the freeway, seems to happen either under load or decelerating. Dealer suggsted new wire set and plugs, customer brought car to us and we did the wires and plugs went out an... |
January 11, 2006 | |
| 1996 Saab 900 SE Turbo 2.0L smokes VIN: YS3DF58N8T P0300: random misfire. Greetings all,hope your new year is going well so far. I have the daughter of a very good customer home from college towed in, smoking badly and obvious noise from turbo at idle. Disassembly shows turbo shot,impeller broken off on exhaust side and shaft very l... |
January 12, 2006 | |
| 1996 Chevrolet S10 4.3L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCCS14XOT P0300: Multiple Engine Misfire Detected. ... guy has bought the truck with 50,000 mi. 3yrs ago. He has had it to many shops. When I started to look at it the truck would misfire on rainy days only. Look at the cap and rotor they were pretty corroded so we replaced them problem whent away for about 3m... |
January 16, 2006 | |
| 1998 Chrysler Sebring JX 2.5L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 3C3EL45H1W P0300: Multiple Cylinder Misfire Detected. car runs bad at times, seems like timing retards so bad that it pops and backfires,then it will run ok for a few min, if you try to drive it, give it gas and it boogs out but if you stay in it car will come back and run good fuel pressure is good, exhaust is n... |
January 16, 2006 | |
| 1996 GMC K1500 Sierra SL 4.3L Hesitation, Stall, MIL Lamp on VIN: 1GTEK14W8T P0300: Multiple Cylinder Misfire Detected. vehicle displays engine random misfire for codes, as well as a couple of t.p.s codes,scope checked vehicle as well a scanned system .Whenever the vehcle is started and accelerated it will misfire just off of idle,and a misfire code will initiate,according to b... |
January 16, 2006 | |
| 1997 Mercury Villager GS 3.0L Poor Idle Quality, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 4M2DV1111V P0300: Multiple Misfire Detected. vehicle has MIL. checked and found P0300. customer requested tune up at same time. tuned up vehicle, no change, changed O2 sensors to verify exaust gas data w/ no change. changed fuel pump thinking there may have been a volume issue: no change. changed Egr thi... |
January 17, 2006 | |
| 2002 Mitsubishi Montero Sport XLS 3.5L MIL Lamp on VIN: 1G5TY6754J P0300: Random Misfire Detected. Vehicle came in with MIL lamp on, runs ok. Customer stated vehicle has intermittent no power and seems to bog down. Checked DTCS and found one present for random cyl. misfire. Checked fuel pressure and spark voltage, all ok. do not want to waste my time pullin... |
January 17, 2006 | |
| 1996 Plymouth Neon 2.0L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1P3ES22CXT P0300: Multiple Cylinder Misfire Detected. ... It came in with a P0300 random misfire code which I initially blamed on the "4 prong" Bosch platinum plugs that the customer installed. I threw a set of OE plugs in it, cleared the code and drove. It ran very rough... |
January 17, 2006 | |
| 2002 Mitsubishi Montero Sport XLS 3.5L MIL Lamp on VIN: 1G5TY6754J P0300: Random Misfire Detected. Vehicle came in with MIL lamp on, runs ok. Customer stated vehicle has intermittent no power and seems to bog down. Checked DTCS and found one present for random cyl. misfire. Checked fuel pressure and spark voltage, all ok. do not want to waste my time pullin... |
January 18, 2006 | |
| 2000 Volkswagen Passat GLS 1.8L Poor Idle Quality, Hesitation, Cuts out, Misfire, MIL Lamp on VIN: WVWMA23BXY P0300: random/multiple cyl. misfire. car will not idle while cold, after working acc. pedal for 3 to 5 minutes, engine warms up and begins to idle. while warm,on a slow rev it will cut out at 1800 rpm.but,if you work the acc pedal it will rev past 1800. after printout with vag 1551 and then cle... |
January 18, 2006 | |
| 1999 Oldsmobile Intrigue GL 3.5L Misfire, MIL Lamp on VIN: 1G3WS52H8X P0300: Engine Misfire Detected. after repairs are made during roadtest some misfires are recorded on tech 2 more on coil pack side with problem , but don't set codes, fuel trim does't make any larger correction than maybe 5 percent,we know that the ecm controls all coils , has anyone else ra... |
January 19, 2006 | |
| 2002 Volkswagen Jetta GLS 1.8L Surge VIN: 3VWSE69M22 P0300: miss. we took the vehicle for a long test drive and it seems that once in about 30 tries, going uphill (mediun grade), at about 3/4 throttle and at about 3200 rpm's the car will start to surge,not miss, the rpm's go up and down about 200 rpm's. it feel as if you are... |
January 20, 2006 | |
| 2001 Oldsmobile Aurora 4.0L Misfire, MIL Lamp on VIN: 1G3GS64C91 P0300: Multiple Cylinder Misfire Detected. ... on this one. Problem started suddenly yesterday. MIL lamp came on and engine was running rough. Found fault code P0300 - misfire detected. Checked plugs - slight carbon builup but nothing extrordinary. Replaced plugs and checked module for corrosion on plu... |
January 23, 2006 | |
| 1999 Toyota Solara SE 3.0L MIL Lamp on VIN: 2T1CF22P9X P0300: Multiple Cylinder Misfire Detected. Good evening fellow techs looking for some help on this one thought it was going to be an easy repair. Orginnally came in with MIL light on lean exhaust found vacuum leak near intake manifold easy repair. Car came back 2 days later with MIL light back on now w... |
January 24, 2006 | |
| 2003 Pontiac Vibe 1.8L Misfire VIN: 5Y2SL62873 P0300: Multiple Cylinder Misfire Detected. has anyone seen misfire problems on pontiac vibes/ toyota matrix? this one came in for an obd emissions inspection. the mil was off but it failed because of the above codes. the customer hadn't noticed any running problems or misses, and we couldn't duplicate ... |
January 25, 2006 | |
| 1996 Dodge Caravan SE 3.0L No Start, Stall, Misfire VIN: 2B4GP4538T P0300: Multiple Cylinder Misfire Detected. this vehicle came to me with a stall/no start condition, when hot, intermitant, after 30 to 60 min. it will restart and run fine. waveform 25860 fuel pump ramp looks good waveform 25859 ckp and cmp sensors, downward spikes on the crank sensor, not sure what to... |
January 26, 2006 | |
| 2002 Pontiac Grand Prix SE 3.1L Hesitation, Misfire, MIL Lamp on VIN: 1G2WK52J02 P0300: Multiple Cylinder Misfire Detected. This vehicle misses on all 6 cyliners randomly, primarily on #2 under load. Mostly does it when its hot. A complete Tuneup was done, coil packs changed, Ignition Control Module, and a Crank sensor(24x). We are very much baffled with this vehicle. Any help woul... |
January 26, 2006 | |
| 2002 Pontiac Grand Prix SE 3.1L Hesitation, Misfire, MIL Lamp on VIN: 1G2WK52J02 P0300: Multiple Cylinder Misfire Detected. This vehicle misses on all 6 cyliners randomly, primarily on #2 under load. Mostly does it when its hot. A complete Tuneup was done, coil packs changed, Ignition Control Module, and a Crank sensor(24x). We are very much baffled with this vehicle. Any help woul... |
January 27, 2006 | |
| 2003 Dodge Neon SE 2.0L MIL Lamp on VIN: 1B3ES26C23 P0300: Multiple Cylinder Misfire Detected. ... here with the following codes, p0300b and p0304. engine has no noticable misfires under load or at idle. customer replaced plugs and wires using bosch plugs. i replaced with oe champions. checked fuel pressure and its within spec. cleared codes an test dro... |
January 30, 2006 | |
| 2001 Ford F-150 Lariat 4.6L Hesitation, Surge, Cuts out VIN: 1FTRX18W51 P0300: random misfire detected. Engine "turns" off and on under loads sometimes. When this happens engine dies for 1 second and low power, tach jumps around, engine sometimes surges and alternator light may come on. Chked coils all OK. Chked waveform of crank sensor, pattern broke up... |
January 30, 2006 | |
| 2003 Dodge Neon SE 2.0L MIL Lamp on VIN: 1B3ES26C23 P0300: Multiple Cylinder Misfire Detected. ... here with the following codes, p0300b and p0304. engine has no noticable misfires under load or at idle. customer replaced plugs and wires using bosch plugs. i replaced with oe champions. checked fuel pressure and its within spec. cleared codes an test dro... |
January 31, 2006 | |
| 1997 Oldsmobile Silhouette GL 3.4L Misfire, MIL Lamp on VIN: 1GHDX03E2V P0300: Multiple Cylinder Misfire Detected. Misfire counter shows skipping on #2 & #5. Idle is a little "nervous". Long term adaptive is @ -14%. It acts like it has a vac leak but I can't find one with smoke. Compression on the effected cyl's is good. Has anyone run into this? |
January 31, 2006 | |
| 1996 Pontiac Bonneville SE 3.8L Hesitation, Misfire VIN: 1G2HZ52K2T P0300: Engine Misfire Detected. hello guys, this car has a missfire under a heavy load or when acclerating on the highway, it will run good in town 30-45 mph, at idle it is very smooth. I have a tech2 and is just getting acquainted to it and i looked at the misfire at idle , it has a small o... |
January 31, 2006 |
