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P0303 Diagnostic Trouble Code Discussion for March 2011

Cylinder 3 Misfire Detected

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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2006 Ford Freestyle SEL 3.0L Poor Idle Quality, Surge, Misfire VIN: 1FMZK02166
P0303: cylinder 3 misfire. ... it had a p0174 p0300 p0301 p0302 and p0303. Checked for a vacuum leak found none. Hooked up the smoke machine and only found smoke leaking out of the egr valve. I removed the intake to check the plugs. some one replaced t...
March 01, 2011
2001 Toyota Avalon XLS 3.0L Misfire, MIL Lamp on VIN: 4T1BF28B51
P0303: Cylinder 3 Misfire Detected. Help with this cold intermittent misfire bank 1... Only on first start of the day, runs rough until closed loop, then STF turn B1 -18 B2 0 and runs great. It's like it's very rich and runs poor until fuel trim is corrected for B1. I have checked VVt solenoids ...
March 01, 2011
2000 Jeep Cherokee Classic 4.0L Hesitation, Cuts out, Misfire VIN: 1J4FF48S8Y
P0303: Cylinder 3 Misfire Detected. Hello again ALL, This Jeep indicates misfire and I have very rarely caught a couple light misfires on #3 cylinder. I suspect the #3 fuel injector is the problem but my bigger concern is customer states that engine ran so poorly that it barely moved at all. Th...
March 04, 2011
2003 Pontiac Vibe 1.8L Misfire, MIL Lamp on VIN: 5Y25M628X3
P0303: Cylinder 3 Misfire Detected. has anyone run into a problem that will cause multiple coil and or plug failures ?? powers and grounds are good . is there a TSB that i can't find ?? Misfire seems to move from cyl to cyl.Possible injector or regulator issue ?? Any help would be appreciated !
March 04, 2011
2003 Hyundai Accent GL 1.6L Misfire VIN: KMHCF35C43
P0303: Cylinder 3 Misfire Detected. I check tps sensor test good replace spark plugs & wires replace crank sensor because its the trigger for coils check for vacuum leaks found none car will run good for weeks at a time with no misfire.thanks for your help.
March 09, 2011
1998 Audi A6 Quattro 2.8L Poor Idle Quality, Misfire VIN: WAUBA24B0W
P0303: testing and results. ... misfire with code p0300,p0301,p0302,p0303. we found vacuum leaks on the intake so we replaced pipes that are cracked and performed a tune up, replaced spark plugs,ignition coil, wires. After the tune up car run fine customer picked up next day same codes c...
March 14, 2011
2005 Toyota Tacoma 2.7L Misfire, MIL Lamp on VIN: 5TEUX42N25
P0303: Cylinder 3 Misfire Detected. ... the engine approaches operating temp. Freeze frame data is the following (I recorded this when vehicle first arrived at shop): P0303, RPM 1610, Calc Load 31%, Injector (ms) 5.12, MAF 13.43 g/s, Vehicle speed 0 MPH, Coolant ...
March 14, 2011
1998 Subaru Legacy Outback 2.5L MIL Lamp on VIN: 4S3BG6855W
P0303: Cylinder 3 Misfire Detected. ... sets a P0304 & P0303 at high speed and low load. P0304 sets more often than the P0303. When it sets the codes NO MISFIRE IS FELT AT ALL! The only thing that is noticed is that the CEL starts flashing. If the load is increased or the speed is decreased ...
March 19, 2011
2003 Dodge Ram 1500 Laramie 4.7L Misfire, MIL Lamp on VIN: 2G1RTHU563
P0303: misfire cyl. 3. Truck came in SES on and misfire at idle in drive the miss lesson's in neutral but still there. Misfire gone off idle and driving. I scoped cyl 3 good pattern I swapped coils with another cyl changed plug any way swapped injector from another cyl good injector...
March 20, 2011
2002 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: SAJEA51C82
I have a jag that has been here multiple times for the same codes, misfires, cylinder 1-3-5 (bank 1) appears to run normal to a certain degree over 2000 rpms, fuel trims in closed loop indicate that bank 1 is full lean, and bank 2 is full rich. We dropped the ...
March 23, 2011
1996 BMW 328i 2.8L Hesitation, Misfire, MIL Lamp on VIN: WBACD4321T
For all BMW techs need help with this car has rough idle every two or three minutes and emissions go high almost 2500 ppm and hesitates for a while for about half a minute and then the emissions go down after that runs normal for another three minutes then emi...
March 24, 2011
2001 Ford Taurus SE 4-Valve 3.0L Excessive Emissions, Misfire VIN: 1FAHP56S7G
P0303: Cylinder 3 misfire. This car misfires when raining or damp outside. It was brought back to us yesterday after 3000 miles ago we replaced the plugs and wires. Customer says it was fine until now and this happens only when its wet out. Car is currently Missing on cyl 3 again. An...
March 24, 2011
2005 Volkswagen Passat GLS 4 Motion 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WVWDD63B95
P0303: cylinder 3 misfire. Hi, I can't believe I am asking such a seemingly simple question. But after 3 hours I cannot find the PCV valve on this car. I have googled it, searched Alldata, and looked all over the vehicle. Everything says it is under the intake manifold. I still cant fin...
March 24, 2011
2000 Dodge Dakota 3.9L MIL Lamp on VIN: 1B7FL26X6Y
P0303: Cylinder 3 Misfire Detected. What are we missing?next step is to check the flexplate but we might be reaching.how can I see what is making the codes appear without symptoms and at cruising speed. fuel trims are +- 8%.Thanks for your time, Thanks in advance for your help
March 31, 2011