
P0303 Diagnostic Trouble Code Discussion for September 2011
Cylinder 3 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 P0303
Help Request | Posted | |
2001 Honda Accord LX 3.0L Poor Idle Quality, MIL Lamp on VIN: 1HGCG22541 P0303: Cylinder 3 Misfire Detected. This Honda idles very poorly. Has random misfire code and misfire codes for all cylinders. All cylinders have 170psi compression and new spark plugs. Smoked out intake and found no vacuum leaks. Removed EGR valve, and made sure it was not stuck open. Even bloc... |
September 02, 2011 | |
2001 Honda Accord LX 3.0L Poor Idle Quality, MIL Lamp on VIN: 1HGCG22541 P0303: Cylinder 3 Misfire Detected. This Honda idles very poorly. Has random misfire code and misfire codes for all cylinders. All cylinders have 170psi compression and new spark plugs. Smoked out intake and found no vacuum leaks. Removed EGR valve, and made sure it was not stuck open. Even bloc... |
September 07, 2011 | |
2005 Mercedes-Benz SL500 5.0L MIL Lamp on VIN: WDBSK75F25 P0303: misfire number 3. hope some one can help me out this car had a junk yard mator installed cause they ran it though water here is the problem i have car runs good untill you get on the highway and go about 5 or so miles the ce light comes on and sets code po303 and shakes real ba... |
September 08, 2011 | |
1997 Ford Thunderbird LX 3.8L Hesitation, Misfire, MIL Lamp on VIN: 1FALP6245V P0303: Cylinder 3 misfire. Thanks in advance for your help. I have a 97 t-bird with a constant misfire on cyl 3. The car came in initially with a ses light, codes stored for misfires on cylinders 1&2 and evap flow. Replaced the purge hose to the intake for the evap, replaced the cra... |
September 09, 2011 | |
2000 Ford Ranger XLT 4.0L Hesitation, Misfire VIN: 1FTZR15X6Y P0303: testing and results. ... with lack of power and check engine light, pulled code p0303, tested compression, spark and fuel, even swapped plugs (motorcraft), wires, injectors to different holes still number three, using ids power balance found when pull number 1 injector wire number... |
September 10, 2011 | |
1995 Mercedes-Benz C280 2.8L Excessive Emissions, Misfire VIN: WDBHA28EXS P0303: Missfire cyl 3. Hi yall, i have this Mercedes in my shop for a failed smog diagnosis, normally i do not work on Mercedes but this is for a good customer, for a California smog inspection the max hydrocarbons allowed is 100 ppm.. while monitoring the readings at idle i watched... |
September 19, 2011 | |
2002 Honda CR-V EX 2.4L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 123HJYJKHH P0303: Cylinder 3 Misfire Detected. I don't know what i am missing here. If you try to hold the vehicle above idle it breaks up and pops almost like the timing is off. If you let the vehicle idle it idles good for about 10-15secs than stalls. Compression looks good. Cat is not clogged, it seems ... |
September 21, 2011 | |
2000 Toyota Celica GT 1.8L Hesitation, Misfire, MIL Lamp on VIN: JTDDR32T14 P0303: Cylinder 3 Misfire Detected. This vehicle has come in, customer complaining of MIL. Vehicle hesitates very badly under load and has very rough idle. Went ahead and swapped all the plus and coils around and cleared the MIL to isolate a cylinder, seems cylinder 3 is having the most misfires... |
September 30, 2011 |