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P0303 Diagnostic Trouble Code Discussion for March 2007

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2001 Volvo S40 1.9L Cuts out, Misfire VIN: YV1VS29521
P0303: Cylinder 3 misfire. ... lap, not well equiped for Volvo diagnosis (Subaru shop). The customer felt it misfire when he was at stop signs, his local repair shop put in plugs and when that did not fix it, said it had to be looked at by another shop. For this Volvo I only have the Sn...
March 01, 2007
2000 Honda CR-V LX 2.0L Poor Idle Quality, Cuts out, Misfire VIN: JHLRD28461
P0303: Cylinder 3 Misfire Detected. vehicle presents when cold runs extremly rough at idle/ lean once starts to warm will idle but poorly and is drivable.map sensor at idle reads approx 1.4-1.5 volts with a vac reading of approx 14 inches... If it had one i would say EGR is stuck open only codes...
March 02, 2007
2001 Hyundai XG300 3.0L Poor Idle Quality, MIL Lamp on VIN: KMHFU42F01
P0303: Cylinder 3 Misfire Detected. hello all after we replaced timing belt 3 days later came back with check engine light on misfire code and other code .felt misfire at idle do you think possible bent valve cyl1,3,5 for one side cylinder head some one out there can help me with this problem th...
March 03, 2007
2002 Mercury Cougar 2.5L Misfire, MIL Lamp on VIN: 1ZWIT61L42
P0303: misfire on cylinder three. This vehicle came in with a rough running problem with the check engine light flashing. Scanner displayed misfire on cyl # 1,2 and 3 bank only. Bank one shows lean, pulse width 2.3 and bank 2 shows pulse width 4.2.I've checked the cat conv, replaced the upper ...
March 07, 2007
1999 Dodge Ram 1500 Van 3.9L Misfire VIN: 2B6HB11X0X
P0303: Cylinder 3 Misfire Detected. Van came in with miss all the time, checked archives for tips,checked installed height of valves and found them with different installed heights so pulled heads for warranty and then found a crack in block surface. Got reman engine from same company, those val...
March 09, 2007
2002 Mercury Cougar 2.5L Misfire, MIL Lamp on VIN: 1ZWIT61L42
P0303: misfire on cylinder three. This vehicle came in with a rough running problem with the check engine light flashing. Scanner displayed misfire on cyl # 1,2 and 3 bank only. Bank one shows lean, pulse width 2.3 and bank 2 shows pulse width 4.2.I've checked the cat conv, replaced the upper ...
March 09, 2007
1999 Mercedes-Benz ML320 3.2L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 4JGAB54E4X
P0303: cyl.3 misfire. Vehicle stalls out at above 1/2 throttle with excessive missfires. Fuel pressure is good. Spark plugs are new. All coils operational. Vehicle idles good. Tested new maf sensor, no change. Checked voltage out puts from throttle actuator to ecm. Found from pin 7...
March 12, 2007
1999 Mercury Cougar 2.5L Misfire, MIL Lamp on VIN: 1ZYFT61L2X
missfire codes returning can not get monitors to run
March 14, 2007
2001 Toyota Avalon XL 3.0L Misfire, MIL Lamp on VIN: 4T1BF28B01
P0303: Cylinder 3 Misfire Detected. Dear fellow techs this should have been easy.This toyota came in for miss fire and flashing cel. Car never had spark plugs. removed manifold replaced spark plugs inspect coil and ohm check injectors reassembled all. No change in problem.swapped coil from good ...
March 14, 2007
1999 Mercury Cougar 2.5L Misfire, MIL Lamp on VIN: 1ZYFT61L2X
missfire codes returning can not get monitors to run
March 16, 2007
2001 Volkswagen Passat GLS 1.8L Hesitation, Misfire VIN: WWWPD63B01
car came in with lean and misfire codes. idle quality was very good. repaired large vacuum leak, now car has extreme lack of power/hesitation.installed new maf, no difference.tried relearn, no difference.checked exhaust back pressure, passed. when test driving...
March 17, 2007
1999 Ford Windstar SE 3.8L Hesitation, Stall, Misfire VIN: 2FM2A514XX
P0303: cylinder missfire. Hi all, This car came in with Check Engine light on (flashing) - car was running real bad acting like it would stall but never actually stall - also car would not get out of its own way - engine is also making a knocking noise - checked compression - ok - chec...
March 20, 2007
2002 Ford Windstar LX 3.8L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2FMZA55422
P0303: cyl 3 mis. this van barely runs i beleive data looks good in scanner. it runs stronger on some cylindets than others i have been advised of the plenum issues on this motor but they havnt seen one bad enough to run like this. any further advice or suggestions on low vacuu...
March 20, 2007
1999 Chevrolet Malibu 3.1L Misfire
P0303: Cylinder 3 Misfire Detected. cylinder 3 misfire that wont go away. has also been to the dealer for same problem dealer said maybe injector thats why it was replaced but did not help
March 25, 2007