Join Now
International Automotive Technicians Network

P0300 Diagnostic Trouble Code Discussion for February 2011

Multiple Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2005 Audi A6 Quattro 3.2L Hesitation, Misfire VIN: WAUDT74F45
P0300: Random missfire. I have this Audi in. It has a engine noise and codes for both camshaft sensors and random missfire codes. The noise sounds like it is coming from the back of the engine. I am thinking it might be a stretched chain. We took a valve cover off hoping to be able t...
February 01, 2011
2001 Chevrolet Monte Carlo SS 3.8L Misfire VIN: 2G1WX15K61
P0300: Multiple Cylinder Misfire Detected. Hi folks, We have been asked by another shop to take a look at this for them, we too, are a little baffled. The engine misfires on # 6 cylinder at idle, misfire counter is showing constant misfires on 6. Counter stays at zero after abt 1500 RPMs. At idle, ki...
February 01, 2011
2004 Jeep Grand Cherokee Laredo 4.7L Misfire VIN: 1J4GW48JX4
P0300: Multiple Misfire Detected. hi and thanks, jeep brought to me with lifter noise and missing, pulled left rocker cover found #5 exhaust rocker laying on head. just wondering if any one else has seen this problem? check valve hieght and looks good. i was thinking carbon on valves. valves d...
February 01, 2011
2007 Dodge Caliber SE 2.0L Misfire, MIL Lamp on, slight vibration VIN: 1B3HB417D3
P0300: Multiple Cylinder Misfire Detected. ... it when I checked with my Genisys, checked freeze frame data before clearing, only code coming back is p0300 and it occurs at approx 2500 rpm and you can feel like a balance problem in the engine at that rpm and then the misfire occurs on #3 cyl mostly but...
February 03, 2011
2006 Mercedes-Benz ML350 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 4JGBB86EX6
P0300: randon multiple misfire. ... six cylinders (p0301-0306) but I could not fit them all in the spaces above. Car misses and shudders very badly at idle and it seems a little worse once it gets hot. If you rev the engine sometimes it sounds like its hitting on all cylinders but other time...
February 03, 2011
1996 Chevrolet Impala SS 5.7L Misfire, MIL Lamp on
P0300: Multiple Engine Misfire Detected. HEY GUYS, I,ve been working on this car for 3 days straight,even on my birthday.This one is really kicking my butt. Car came in for a N.J. state inspection.Check engine light was glowing.I pulled codes. The first one was a air pump code. No big deal,seized a...
February 04, 2011
2007 Dodge Caliber SE 2.0L Misfire, MIL Lamp on, slight vibration VIN: 1B3HB417D3
P0300: Multiple Cylinder Misfire Detected. ... it when I checked with my Genisys, checked freeze frame data before clearing, only code coming back is p0300 and it occurs at approx 2500 rpm and you can feel like a balance problem in the engine at that rpm and then the misfire occurs on #3 cyl mostly but...
February 04, 2011
2006 Mercedes-Benz ML350 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 4JGBB86EX6
P0300: randon multiple misfire. ... six cylinders (p0301-0306) but I could not fit them all in the spaces above. Car misses and shudders very badly at idle and it seems a little worse once it gets hot. If you rev the engine sometimes it sounds like its hitting on all cylinders but other time...
February 04, 2011
2005 Nissan Maxima SE 3.5L Hesitation, Misfire, MIL Lamp on
P0300: Multiple Misfire Detected. This one is running rough I ran injector disable test all seem to be contributing the same. While running I can hear a popping out exhaust if I disconnect the a/f ratio sensor in front bank engine runs fine no popping idles smooth. If I try the same on the rea...
February 06, 2011
1997 Chevrolet S10 LS 4.3L No Start, Flooding VIN: 1GCCS19X7V
P0300: Multiple Engine Misfire Detected. ... to me after the customer replaced half of everything to figure out a P0300.The vehicle came to me as a no start.I was told he replaced the fuel pump,fuel filter,ignition complete cap rotor wires plugs.Saw A new ignition coil.Started with scoping crank and ...
February 07, 2011
2002 Chevrolet Suburban 1500 LS 5.3L Misfire VIN: 1GNEC16T22
P0300: Multiple Cylinder Misfire Detected. hi i need help wt this one, the truck had the ck engine lith on wt po300, since have over 100,000 miles we d the wires and plugs, but still misfire on driver side of the engine cilynder 1,3,5,7 all the coils are good the ingectors puls is good. if some one see...
February 07, 2011
2005 Chevrolet Impala 3.8L Poor Idle Quality, MIL Lamp on VIN: 2G1WH52K85
P0300: Multiple Cylinder Misfire Detected. hey fellow techs, Got this brain teaser here. car came in with customer complaining of poor idle quality. Excellerates fine but at idle vehicle misfires from random cylinders.Vacuum at idle jumps between 17.5 to 16 psi. Misfire tends to be random but when i lo...
February 07, 2011
2007 Pontiac G6 GTP 3.6L Misfire, MIL Lamp on VIN: 1G2ZM58767
P0300: Random Misfire Detected. Thanks for your time. This this has got a miss on cylinders 1 3 and 6. swaped coils around no change swaped fuel injectors with no luck pulled both cats and no change good compretion on all cylinders. injector spay pattern good, coils are snapping hard. the th...
February 07, 2011
2006 Volkswagen Touareg 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WVGZG77L66
P0300: Random Multiple Misfire. ... p2422 (VW 09250) p0456 (VW 01110), P0300 (VW 00768), p0301 (VW 00769) P0306, p0303, p0304. I somehow think the misfire codes may be related to the evap system therefore I am trying to figure ...
February 08, 2011
2007 Honda Odyssey Touring 3.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 5FNRL38257
P0300: Random Misfire Detected. I have an Odyssey here that is throwing me for a loop. Came in Mon. with a complaint of stalling at idle. It seems to be mainly when the van is cold, and it has been COLD here lately. Had codes for every cylinder misfire except for cylinder #6. When I started ...
February 09, 2011
2004 Chevrolet Silverado 1500 5.3L Misfire VIN: 2GTEK19T24
P0300: Multiple Cylinder Misfire Detected. Hello to all!We have this truck put us in the corner here.Truck came in for miss firing on #1,#3,we replaced spark plugs,wire set still miss fire,smoke test intake syytem no leaks found, exhast back pressure test found no restriction.Pulled injector connector ...
February 10, 2011
2001 Volvo S80 2.9 2.9L Misfire, MIL Lamp on VIN: YV1TS94D11
P0300: Random Misfire. I'd like to be the hero on this one but I'm running out of ideas here. This car acts very strange. Runs good. Cust states power and fuel economy has been the same as ever. At idle all is well. If the rpms are brought past 2k the check engine light starts flash...
February 10, 2011
1997 Cadillac Eldorado 4.6L Misfire, MIL Lamp on VIN: 1G6EL12Y4V
P0300: Engine Misfire Detected. Vehicle came in with Check Engine light on, with original code po301-cylinder 1 misfire detected. Pulled plugs and found OE Plugs still in vehicle at almost 100k miles on them. Vehicle was not missing at this time. Replaced all 8 plugs with new OE plugs, clear...
February 11, 2011
2000 Volkswagen Passat GLS 1.8L Misfire VIN: WVWMA23B6Y
P0300: miss fire multi cylinder. Ive spent some time with this thing so im going to try and put down everying ive done. This car was bought at auction is at the shop from a car lot. The problem is that it will randomly set misfire codes for cylinder 1 and 3. I drove the car probably close to ...
February 14, 2011
2000 Volkswagen Passat GLS 1.8L Misfire VIN: WVWMA23B6Y
P0300: miss fire multi cylinder. Ive spent some time with this thing so im going to try and put down everying ive done. This car was bought at auction is at the shop from a car lot. The problem is that it will randomly set misfire codes for cylinder 1 and 3. I drove the car probably close to ...
February 15, 2011
2001 Mitsubishi Eclipse Spyder GT 3.0L Hesitation, Stall, Misfire, MIL Lamp on VIN: 4A3AE55H91
P0300: Random Misfire Detected. ... tune-up and valve cover gaskets were replaced approximately 1 week before. The complaint was rough idle and sluggish on acceleration( mil was on).They said it started about 5 days after work was done. After diag. test(p0300 and p0304) and smoke testing for...
February 16, 2011
2006 GMC Envoy XL Denali 5.3L MIL Lamp on, Mis-fire VIN: 1GKET16S26
P0300: Multiple Engine Misfire Detected. ... 4.2L inline six cylinder.(not a Denali) came in with CEL. Ran codes with SOLUS-Pro scan tool. DTC-P0300 is the one I can't solve. I have a intermittent misfire on cyl # 4 & #6. I replaced all six spark plugs. Still had the same results. Then I swapped ...
February 17, 2011
2000 Mercedes-Benz SL500 5.0L Poor Idle Quality, Misfire VIN: MEBE261515
P0300: testing and results. ... out put noid light on injector seems good then cuts out when idle comes down installed plugs p0300 p0305 po306 p0307 p0308 all comes on fast please help
February 22, 2011
2003 Dodge Neon SE 2.0L Stall, Misfire VIN: 1B3ES56CX3
P0300: Multiple Cylinder Misfire Detected. ... battery dissconnect and touch connectors together for 30 seconds. reset adaptives,and will crank likes alls ok then p0351 returns fast and starts missing on #1.I'm looking at ignition coil with lab scope,but can't find som...
February 24, 2011
2003 Toyota Camry XLE 3.0L Misfire, MIL Lamp on VIN: 4T1BF30K13
P0300: Multiple Cylinder Misfire Detected. ... run 50 mph.Scan showed p0300,in pending was p0301 p0303 p0305,All on the same bank.Vaccum test results were 15 inches idling with no rebound above 15 o...
February 24, 2011
2007 Audi A6 Quattro 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUDV74F67
P0300: random missfire. BVJ eingine. Regular client, serviced regularly. as described at idle and just above mil on and flashing, drive the car and the counters drop, light goes out and it's smooth under accel/load/cruise. Come to an idle/stop and RUFF! The lights on, counters are up...
February 28, 2011
2004 Chevrolet Colorado 3.5L Misfire VIN: 1GCDT136X4
P0300: Engine Misfire Detected. This vechile misses on #3 at idle only. tried a new coil and plugs no difference so we did the exhaust valve springs and seals per TSB. No difference, still misses on #3. I have since heard rumours of bad heads. Any ideas.
February 28, 2011
2005 Hyundai Santa Fe 2.7L Misfire, MIL Lamp on VIN: KM8SC73D65
P0300: Multiple Misfire Detected. ... running condition and check engine light on. Had a crank sensor code. Replaced crank sensor and repaired bare spot in pigtail. Car started and ran well. Came back today with a p0300 and also individual cylinder codes but no crank code. It was raining this ...
February 28, 2011