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P0303 Diagnostic Trouble Code Discussion for April 2014

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2003 GMC Safari 4.3L Misfire, MIL Lamp on VIN: 1GKDM19X23
P0303: Miss fire. HI.I have a miss fire # 3 cylinder @ idle in closed loop warm.Compression test leak down test all check good.Ignition @ fuel tested good.The miss fire will go away when I hold pressure on # 3 cylinder exhaust rocker arm running @ idle.I already replaced all th...
April 10, 2014
2008 BMW 535xi 3.0L Poor Idle Quality, Hesitation, MIL Lamp on VIN: WBANV93568
P0303: Cyl 3 misfire. Put new spark plugs in cylinders #1,2,3 with no effect. I could not find a resistance spec for either the coils or the fuel injectors. Is there someting common to cyl#1,2,3 that I could be missing? Does anyone have any electrical specs for windings in coil ...
April 15, 2014
1998 Volvo S70 2.4L Excessive Emissions, MIL Lamp on VIN: YV1LS5544W
Hoping for a little help on this one from you guys, this car somewhat has me somewhat stumped. 1998 Volvo S70 non-turbo, is continually setting misfire codes. The strange thing is, I've never felt this car misfire a single time. The car has had the entire igni...
April 18, 2014
2008 BMW 535xi 3.0L Poor Idle Quality, Hesitation, MIL Lamp on VIN: WBANV93568
P0303: Cyl 3 misfire. Put new spark plugs in cylinders #1,2,3 with no effect. I could not find a resistance spec for either the coils or the fuel injectors. Is there someting common to cyl#1,2,3 that I could be missing? Does anyone have any electrical specs for windings in coil ...
April 21, 2014
2007 Audi A6 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUAH74F57
Another Euro POS, UGGHHH !! This thing came in running very bad at idle. Rotten egg smell, black smoke when the throttle is pushed. Once underway the car seems to run fine. Pulled the three coils on the passenger side. Two out of three were full of oil. Re...
April 22, 2014