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P0300 Diagnostic Trouble Code Discussion for November 2013

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2002 Chevrolet Avalanche 1500 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 3GNEK13T22
P0300: Multiple Cylinder Misfire Detected. I took a tempature before the cats and found the left one was 650 and the right was 300 so I suspected clogged cat on one side. Cut off both cats and no restriction. It seems like a jumped timing chain. I scoped the ign on the dis setting and all the paterens ...
November 01, 2013
1999 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13W9X
P0300: Multiple Cylinder Misfire Detected. Customer was driving 35 mph and all at once truck began to miss. Pulled over and truck came to us on the wrecker. Missing on cylinder 1 and 2. Smells rich, we pulled plenum found no fuel leaks. Unplugged o2 sensors no change. Has fire on cylinder 1 and 2, plug...
November 04, 2013
2002 Chevrolet Avalanche 1500 5.3L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 3GNEK13T22
P0300: Multiple Cylinder Misfire Detected. I took a tempature before the cats and found the left one was 650 and the right was 300 so I suspected clogged cat on one side. Cut off both cats and no restriction. It seems like a jumped timing chain. I scoped the ign on the dis setting and all the paterens ...
November 05, 2013
1996 Lexus LS400 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy VIN: JT8BH22F7T
P0300: Multiple Cylinder Misfire Detected. came in with clogged cat on passenger side . replaced cat , noticed smelling gas out exhaust . bank 2 running full rich . replaced b2s2 o2 sensor , and all spark plugs . still running rich . very weak injector pulse , untill engine is revved , then gets SUPER ...
November 05, 2013
2000 BMW 328i 2.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WBAAM5332Y
P0300: Random multiple misfire. This E46 is driving me crazy. The car runs perfectly when cold, it only acts up once it gets into closed loop. It has misfire codes for cylinders 1,2 & 3. The O2 sensor voltage on bank 1 remains near 0 volts when the car is acting up. It seems like a simpl...
November 07, 2013
2006 Chevrolet Silverado 2500 HD LT 6.0L MIL Lamp on VIN: 1GCHK24U66
P0300: Multiple Engine Misfire Detected. ... complaint of the CEL coming on at 65 mph and flashing. If you speed up or slow down the light will go out. There are no driveability issues when this happens. If you check for codes after this occurs there will only be a P0300 history code. We checked the ...
November 07, 2013
2006 Chevrolet Express 3500 LS 6.0L MIL Lamp on VIN: 1GBJG31U86
P0300: Multiple Cylinder Misfire Detected. ... This Van is actually a small school bus. Intermitently this bus sets a P0300, and the mil flashes. The driver states that no other symptoms are noticed. I have been unable to duplicate the problem while driving, but I noticed when in the bay, in park, hold...
November 12, 2013
2001 Jeep Cherokee Sport 4.0L Misfire VIN: 1J4FF48S61
P0300: Multiple Cylinder Misfire Detected. Hello and thanks for the help. This Jeep has a Golen 4.6 stroker and the recommended injectors from them. Misfires at idle on all cylinders, checked cam sync, it was at 11 and readjusted to zero, cam sync degrees fluctuates about +-2 degrees and still misfires...
November 12, 2013
2008 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DT57V98
P0300: misfire. This is a problem vehicle thats been to 4 other shops.Codes for misfire were not on when vehicle came in they came on this morning while I was testing. With your help we can get to the bottom of this. Code P0101 for maf signal comes up. The MAF sensor has been...
November 13, 2013
2006 Chevrolet Express 3500 LS 6.0L MIL Lamp on VIN: 1GBJG31U86
P0300: Multiple Cylinder Misfire Detected. ... This Van is actually a small school bus. Intermitently this bus sets a P0300, and the mil flashes. The driver states that no other symptoms are noticed. I have been unable to duplicate the problem while driving, but I noticed when in the bay, in park, hold...
November 13, 2013
2006 Chevrolet Colorado LT 2.8L Misfire, MIL Lamp on
P0300: Engine Misfire Detected. Ok I do not like asking for help but now I have no choice I have I 2006 Chevy Colorado 4 cylinder engine 2.8l this is my problem misfire on cylinder 4 it happens intermittent when is misfiring and if I pull to the side of the road and I give it gas the misfire...
November 13, 2013
2010 Chevrolet Silverado 1500 LTZ 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GCRKTE37A
P0300: Random missfire. This vehicle came in with SES on and P0300 stored, check miss history, found #4 cylinder is the problem, pulled spark plug and found porcelain on tip of plug is cracked off, found GM TSB 12-06-01-001B for oil fouling of #1 and #7 spark plugs due to bad pcv baf...
November 13, 2013
2004 Chrysler Sebring Limited 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1C3EL65R24
P0300: Multiple Cylinder Misfire Detected. Vehicle has what feels like a vibration but is indicated as a misfire along with flashing engine lamp at idle only. Off idle engine lamp goes out or stays on steady (miss goes away off idle). Check misfire counters and found bank one(cylinders 1,3,5) are misfi...
November 13, 2013
1999 Infiniti I30 3.0L Misfire VIN: JNKCA21A6X
P0300: Multiple Misfire Detected. This car came in two months ago with cel on and complaint of slight hessitation found po302 but car ran fine so I switched #2 and#4 cyl coils and cleared codes told customer to bring back when light came back on. Few weeks later came back with cel on and #2 mi...
November 13, 2013
2000 Toyota Avalon XL 3.0L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 4T1BF28B2Y
P0300: Multiple Cylinder Misfire Detected. ... with check engine light on. Driving down the road seems ok but idle surges slightly. Found misfire codes and p1354 for vvt problem. Went ahead and pulled front valve cover to check for sludge which is common in these engines but motor was clean. Pulled oil...
November 13, 2013
2008 Nissan Rogue SL 2.5L No Start, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: JN8AS58V78
P0300: Random cylinder misfire. ... complaint. had misfire codes for all 4 cylinders as well as a P0300 random misfire code. Upon test drive vehicle ran fine, hot or cold we drove for approx. 25 miles. 4 days later vehicle was towed in with a no start complaint. plugs were wet, fuel pressure...
November 14, 2013
2004 Chrysler Sebring Limited 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1C3EL65R24
P0300: Multiple Cylinder Misfire Detected. Vehicle has what feels like a vibration but is indicated as a misfire along with flashing engine lamp at idle only. Off idle engine lamp goes out or stays on steady (miss goes away off idle). Check misfire counters and found bank one(cylinders 1,3,5) are misfi...
November 16, 2013
2004 Infiniti G35 3.5L Misfire, MIL Lamp on, no power VIN: JNKCV54E54
P0300: Multiple Misfire Detected. ... this Infiniti in here that is falling flat on its face and setting a p0300 misfire code. At idle fuel trim is normal 0 +/-5 at 2500 rpm bank 1 is -4 +/-5 bank 2 is at +25. MAF is showing 6 grams per sec at idle and 20 grams per sec at 2500 rpm. the o2 sens...
November 16, 2013
1999 Chevrolet K1500 LS 5.7L Poor Idle Quality, Misfire VIN: 1GNFK16RXX
P0300: Multiple Cylinder Misfire Detected. Misfire on 6 is continuous on cylinder 6 after head was re- installed. We replaced #1 and #5 injectors on the spider due to misfires before tear down. I turned of injector 6 with scan tool and felt no change. All other cylinders showed a felt change when injec...
November 18, 2013
2000 Pontiac Bonneville SE 3.8L Poor Idle Quality, Misfire VIN: 1G2HX54K1Y
P0300: Engine Misfire Detected. Hello, This car came in for a overheat and died. Found the coolant leak and it failed a block test with running very rough. Customer opted to pull heads and they pressure checked OK, gasket was damaged. Put it all back together and now I have a misfire on cyli...
November 20, 2013
2002 Audi A4 Quattro 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAULT68E92
P0300: multiple misfire. This car was originally in the shop 3 months ago with codes set for the Intake camshaft control circ. bank 1 and bank 2 open, bank 1 adjuster tested bad so we replaced only bank 1 adjuster unit and timing belt, when we finished we topped the car off with oil a...
November 21, 2013
2005 Chevrolet Express 3500 LS 4.8L Misfire, MIL Lamp on VIN: 1GCHG35V35
P0300: Multiple Cylinder Misfire Detected. ... codes for a misfire about 3 months ago (p0300- counting misfires on1,5,6,8 which are all opposite in the firing order {[...]}). it appeared to be in need of a tune up, so we replaced the plugs and wires (coil near plug). we've had a lot of GM's with dirty ...
November 21, 2013
2007 Chrysler Sebring Touring 2.7L Poor Idle Quality, Hesitation, Surge VIN: 1C3LC56R57
P0300: Multiple Cylinder Misfire. ... chrysler with a 2.7 and 3 months ago the customer had a noise from the front of the engine which turned out to be the water pump. We replaced that along with a timing chain tensioner. Customer recently brought vehicle back with a shifting erratically and s...
November 21, 2013
2000 Pontiac Bonneville SE 3.8L Poor Idle Quality, Misfire VIN: 1G2HX54K1Y
P0300: Engine Misfire Detected. Hello, This car came in for a overheat and died. Found the coolant leak and it failed a block test with running very rough. Customer opted to pull heads and they pressure checked OK, gasket was damaged. Put it all back together and now I have a misfire on cyli...
November 21, 2013
2007 Chrysler Sebring Touring 2.7L Poor Idle Quality, Hesitation, Surge VIN: 1C3LC56R57
P0300: Multiple Cylinder Misfire. ... chrysler with a 2.7 and 3 months ago the customer had a noise from the front of the engine which turned out to be the water pump. We replaced that along with a timing chain tensioner. Customer recently brought vehicle back with a shifting erratically and s...
November 22, 2013
2001 Mazda Protege ES 2.0L Stall VIN: JM1BJ22511
P0300: Multiple Misfire Detected. Hello and thanks. This car stalls but restarts and when it starts the check engine light flashes and sets 300 code. Its only happens for a moment and not long enough to do any checking. Freeze Frame is limited and seems to be after issue. I did some checking o...
November 25, 2013
2004 Volkswagen Passat GL 1.8L Misfire VIN: WVWMD63B84
P0300: . thanks in advance, this one is sucking the life out of me, keeps setting misfire codes for cyl 1 & 2 intermittenly. have swapped coils no change mass air flow sensor had very low readings replaced maf now readings are in spec, but still intermittly runs ba...
November 25, 2013
2004 Volkswagen Passat GL 1.8L Misfire VIN: WVWMD63B84
P0300: . thanks in advance, this one is sucking the life out of me, keeps setting misfire codes for cyl 1 & 2 intermittenly. have swapped coils no change mass air flow sensor had very low readings replaced maf now readings are in spec, but still intermittly runs ba...
November 26, 2013
2006 Mazda RX-8 1.3L MIL Lamp on VIN: JM1FE17376
P0300: Random Misfire Detected. I put a new engine in this car (the old engine was just worn out) and finally got some tires on it to drive it around the block. Drives fantastically except for the check engine light. I've replaced the spark plug, and ignition coils when I installed the engin...
November 30, 2013