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P0300 Diagnostic Trouble Code Discussion for July 2006

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
1999 Buick Regal LS 3.8L Poor Idle Quality, Misfire
P0300: Engine Misfire Detected. I preety much explaind it all in the above response
July 01, 2006
1999 Volkswagen Golf GTI 2.0L bog VIN: WVWDA31JXX
Posting an inherited problem lol. Vehicle exhibits mild to severe bog on accell @ approx 3000 rpm not noticable cold only hot sensor data (generic) looks normal values fuel pressure approx 2 bar Repaced ign coil, spark plugs wires, up stream o2 sensor, flushed...
July 04, 2006
2000 Jaguar XJ8 4.0L No Start, Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: SAJDA14C9Y
P0300: Random Misfire. Hello everyone, this 2000 Jaguar XJ8 has a very hard time starting. Cranks fine, but wont run well at all. It has misfire codes on every cylinder. Pulled spark plugs and found them black and fuel fouled. Replaced plugs, same thing. When it does run it backfire...
July 06, 2006
1999 Nissan Maxima GLE 3.0L Misfire, MIL Lamp on VIN: JN1CA21DXX
P0300: Multiple Misfire Detected. ... 301 cyl 1 misfire and p1320 ignition circuit failure. Cylinder 1 coil had a failed waveform and coils 2 and 4 were dead. We inspected the ECCS harness and replaced all 6 coils per the Nissan TSB. Good old code p1320 came back and now I have a code p300 for...
July 07, 2006
2000 Jaguar XJ8 4.0L No Start, Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: SAJDA14C9Y
P0300: Random Misfire. Hello everyone, this 2000 Jaguar XJ8 has a very hard time starting. Cranks fine, but wont run well at all. It has misfire codes on every cylinder. Pulled spark plugs and found them black and fuel fouled. Replaced plugs, same thing. When it does run it backfire...
July 08, 2006
2001 Kia Sportage 2.0L Misfire, MIL Lamp on, VIN: KNDJA72301
P0300: Random Cylinder Misfire Detected. ... complained that vehicle was missing and felt like it was going to cut out. Vehicle had missfire on initial start up but went away. On test drive vehicle ran rough twice at a stop. On all the test drives this past week it missfired on a cold start(65-75 deg...
July 10, 2006
2002 Chevrolet Astro 4.3L No Start VIN: 1GCDM19252
P0300: Multiple Cylinder Misfire Detected. We have this van here with an intermittant no start. Finaly got it not to start here at the shop and discovered we had no fuel pressure. The van had a crank signal. It wasnt disabling the fuel pump which i think rules out antitheft system. Checked for power/gr...
July 11, 2006
1996 Buick LeSabre Limited 3.8L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G4HR52KXT
P0300: Engine Misfire Detected. Vehicle came in for Ac Service. Got that done and test drove vehicle, it started missfiring and hesitating very badly. Almost feels like a bad MAF sensor- The MAF checked good, but I tried a new one anyway. It did not do a thing. Also the reading on my slios f...
July 12, 2006
1998 Chevrolet Astro 4.3L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GNDM19W8W
P0300: Multiple Cylinder Misfire Detected. Customer complained vehicle intermittantly revs up like stuck throttle when actually throttle isn't sticking happen at a idle and cruise. when this happenned check engine light flashing. turned key off then restarted and check engine light steady on but idle i...
July 13, 2006
1998 Chevrolet Astro 4.3L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GNDM19W8W
P0300: Multiple Cylinder Misfire Detected. Customer complained vehicle intermittantly revs up like stuck throttle when actually throttle isn't sticking happen at a idle and cruise. when this happenned check engine light flashing. turned key off then restarted and check engine light steady on but idle i...
July 14, 2006
2000 Nissan Sentra GXE 1.8L Poor Idle Quality, Stall, Misfire VIN: 3N1CB51D5Y
P0300: Multiple Misfire Detected. car came in with plug misfire and intake valve position sensor codes.replaced sensor cleared codes car still has misfire stalls out on idle has no power (HELP) thanks in advance.
July 15, 2006
1997 Audi A4 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUCB88D0V
P0300: Random misfire detected. Looking for some help: Car was towed in: would barely run and had loud banging noise in engine. We removed the cylinder head and found #2 spark plug to be missing 2 ground electrodes (plugs have 3 electrodes), plug had loosened out of threads but was not hit, ...
July 20, 2006
1998 Chevrolet C1500 Suburban 5.7L Misfire VIN: 1GKEC16R7W
P0300: Multiple Cylinder Misfire Detected. GOOD DAY GENTLEMEN: HOPE SOMEONE HAS SEEN THIS PROBLEM. WE HAVE A MISFIRE ONLY ON #6 CYLINDER. IT WILL GO AWAY ONCE YOU GIVE IT A LITTLE THROTTLE BUT WHEN BROUGHT BACK DOWN TO IDLE THE MISS IS BACK. ALL FUEL TRIMS LOOK GREAT AS YOU CAN SEE. ALL REPLACED COMPON...
July 21, 2006
2000 Volkswagen Jetta GLS 1.8L Poor Idle Quality, Surge, Cuts out, Misfire VIN: 3VWPD69M01
P0300: multiple cylinder missfiring. car came in with poor running complaint. idled perfectly, but was slow to start. it usually took three or four tries. it always popped in exhaust the last try before starting. accelerated fair but dies when boost comes on. surged at constant speed. will free r...
July 23, 2006
2001 Saab 9-5 2.3t 2.3L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: YS3ED48E01
P0300: random misfire. Has not checked for plugs nor any other tests cause I checked the vehicle within the last 15 minutes of the shift with a generic scanner. Any idea guide me into the right direction will be appreciated. I'm not a Saab tech and this is the first 9.5 I've encount...
July 24, 2006
1999 Pontiac Montana 3.4L Misfire VIN: 1GMDU06E8X
P0300: Multiple Cylinder Misfire Detected. This Van has a misfire almost always while idling, especially in gear. The counter on the scanner shows number 3 missing like crazy. Just off idle and driving is fine, never misses a beat. I have replaced, plugs, wires, coils, module, number 3 injector (Used)....
July 25, 2006
2000 Chevrolet Astro 4.3L Misfire VIN: 1GCDM19W8Y
P0300: Multiple Cylinder Misfire Detected. Read above
July 26, 2006
2000 Saturn LS2 3.0L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on, Lack of Power VIN: 1G8JW52R9Y
P0300: Random Misfire Detected. Hello all, I have a Saturn here I'm having some difficulty diagnosing. The customer stated that after replacing the battery, the vehicle bucks and runs rough. The vehicle does run extremely rough, has a noticeable misfire (engine light flashes), stalls occassi...
July 26, 2006
1997 Dodge Caravan SE 3.0L Misfire, MIL Lamp on VIN: 2B4GP4530V
P0300: Multiple Cylinder Misfire Detected. Hey guys and gals,thanks in advance for the help,before i tell the customer they have an internal engine problem i thought i would get a few opinions...van came in with check engine light on(po300&po306),felt like a light ignition miss,customer says it run...
July 27, 2006
1996 Saab 900 SE Turbo 2.0L MIL Lamp on VIN: YS30F78N2T
P0300: Random Missfire. ... drivability problems except the MIL on and flashing. I checked all the normal stuff. I read in the arcives about a 02 sensor splice in the harness. I cut the splice out cleared the codes, depowered the PCM for a half hour. I have no more codes but the P030...
July 27, 2006
2000 Saturn LS2 3.0L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on, Lack of Power VIN: 1G8JW52R9Y
P0300: Random Misfire Detected. Hello all, I have a Saturn here I'm having some difficulty diagnosing. The customer stated that after replacing the battery, the vehicle bucks and runs rough. The vehicle does run extremely rough, has a noticeable misfire (engine light flashes), stalls occassi...
July 27, 2006
1997 Dodge Intrepid 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 2B3HD46F2V
P0300: Multiple Cylinder Misfire Detected. Car came in with occas. stall at stops, missing & check eng. light. We found bad coil(2 cylinders had weak spark) & changed plugs, wires. After doing, still have occasional stall at stops & will drop 1,3,5, cylinders(according to M/Tech scanner) on...
July 28, 2006
2001 GMC Yukon Denali 6.0L Misfire, MIL Lamp on VIN: 1GKEK63U71
P0300: . I did injector flush and cleared up misfire on cyl 1,7,8 cleared code and road tested great, later that day it returned with mil on and same code with different cyl's misfiring, pulled rails and found full of some kind of black sediment, curious about what mig...
July 28, 2006
1996 Chevrolet Astro 4.3L Misfire, MIL Lamp on VIN: 1GNDM19W6T
P0300: Multiple Cylinder Misfire Detected. 4.3 litre chevrolet miss fire only at idle number 3 and 5 cylinders bring the idle up just a little smoothes out. miss fire goes away? any help out there? please!
July 29, 2006
1999 Infiniti I30 3.0L Poor Idle Quality, Cuts out, Misfire VIN: JNKCA21A0X
P0300: Multiple Misfire Detected. Hey guys. Have a 99 I30 that is misfiring on #2 and #5. Before I did anything I swapped coils no change as far as cyl goes. Also swapped injectors, no change. I can only get noid light on #2, but it shows a obvious interuption in the signal to injector. It wil...
July 29, 2006
1997 Dodge Caravan SE 3.0L Misfire, MIL Lamp on VIN: 2B4GP4530V
P0300: Multiple Cylinder Misfire Detected. Hey guys and gals,thanks in advance for the help,before i tell the customer they have an internal engine problem i thought i would get a few opinions...van came in with check engine light on(po300&po306),felt like a light ignition miss,customer says it run...
July 30, 2006
1996 Chevrolet Astro 4.3L Misfire, MIL Lamp on VIN: 1GNDM19W6T
P0300: Multiple Cylinder Misfire Detected. 4.3 litre chevrolet miss fire only at idle number 3 and 5 cylinders bring the idle up just a little smoothes out. miss fire goes away? any help out there? please!
July 31, 2006