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P0303 Diagnostic Trouble Code Discussion for May 2012

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2003 Cadillac CTS 3.2L Misfire
P0303: Cylinder 3 Misfire Detected. Got what should be an easy one for you GoodWrench guys. Got this '03 Cadillac CTS with a 3.2 that loses its pulse signal to the #3 injector. Injector has been replaced along with a used ECM. Same results. Car will have an injector pulse signal for a few minute...
May 08, 2012
2006 Honda Pilot EX 3.5L Misfire VIN: 5FNYF28636
P0303: Cylinder 3 Misfire Detected. ... cylinders. P0301/P0302/P0303/P0304/P0305/P0306. We have adjusted the valves, sent the car to the dealer to have the latest software installed per TSB. The misfire is not like all the others I have read about on IATN, as they ...
May 09, 2012
2003 Ford Expedition XLT 5.4L Hesitation, Surge, Misfire VIN: 1FMPU15L33
P0303: cyl 3 misfire. ok truck came in P0303 code customer stated it was bucking at 1500rpm under load. Move coil to #2 and P0302 indicated we had a bad coil . After replacing coil customer returned the next day and said it was still bucking at 1500rpm, no codes found but did find ...
May 10, 2012
1999 Honda CR-V EX 2.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JHLRD1866X
P0303: Cylinder 3 Misfire Detected. When first started cold and thrown in gear sometimes will idle low and die/stall. If given more throttle in park will bog down and back fire through intake and hard to get it to go to even 3k rpm. When warmed up will not go above 5k rpm in park/neutral. Once w...
May 11, 2012
1999 Honda CR-V EX 2.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JHLRD1866X
P0303: Cylinder 3 Misfire Detected. When first started cold and thrown in gear sometimes will idle low and die/stall. If given more throttle in park will bog down and back fire through intake and hard to get it to go to even 3k rpm. When warmed up will not go above 5k rpm in park/neutral. Once w...
May 16, 2012
1997 Toyota Corolla 1.6L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 2T1BA02EXV
P0303: Cylinder 3 Misfire Detected. ... not idle,when i got it the o2 sensor was unhooked,blowing black smoke out the tail pipe and it would not idle.we put spark plugs ,distribtor cap and rotor button,oil was full of gas so we changed oil.then it would idle but sill blowing black smoke out the ...
May 16, 2012
2003 Ford Expedition XLT 5.4L Misfire, MIL Lamp on VIN: 1FMFU15L73
P0303: misfire on 3 cyl. this truck come in at around 1pm with the light on scanned codes. performed cylinder balance test no miss found. the truck drives good and no miss is felt nor shows on data pids. i let it cool down and re tested with same results. should i let it sit overnight...
May 18, 2012
2004 Honda Civic GX 1.7L Misfire VIN: 1HGEN26524
P0303: Cylinder 3 Misfire Detected. To all Techs, This Honda is equipped with a CNG fuel system. We replaced all new spark plugs and ignition coils. Engine experience misfire every once in a while especially under load. During misfire condition, fuel injection pulse and ignition coil trigger was...
May 23, 2012
1999 Dodge Dakota 3.9L Misfire, MIL Lamp on VIN: 1B7GL22X9X
P0303: Cylinder 3 Misfire Detected. ... cruising on the highway at 65-7 and then it starts to misfire, he bought a code reader and it always shows p0301,p0302,p0303.. i have changed all plugs, wires cap and rotor and crank sensor any help from here would be gre...
May 30, 2012
1999 Jeep Cherokee Sport 4.0L Misfire, cracked plugs VIN: 1J4FF68S7X
P0303: Cylinder 3 Misfire Detected. we are having a problem with this jeep cracking cyl 3 spark plug. NO CARBON, we have done numerous induction cleanings in the past, thinking it was carbon. I'm stumped. The plug appears fine in color, very light brown, and the deep casing on the plug is closer...
May 31, 2012
2003 Cadillac CTS 3.2L Misfire
P0303: Cylinder 3 Misfire Detected. Got what should be an easy one for you GoodWrench guys. Got this '03 Cadillac CTS with a 3.2 that loses its pulse signal to the #3 injector. Injector has been replaced along with a used ECM. Same results. Car will have an injector pulse signal for a few minute...
May 08, 2012
2006 Honda Pilot EX 3.5L Misfire VIN: 5FNYF28636
P0303: Cylinder 3 Misfire Detected. ... cylinders. P0301/P0302/P0303/P0304/P0305/P0306. We have adjusted the valves, sent the car to the dealer to have the latest software installed per TSB. The misfire is not like all the others I have read about on IATN, as they ...
May 09, 2012
2003 Ford Expedition XLT 5.4L Hesitation, Surge, Misfire VIN: 1FMPU15L33
P0303: cyl 3 misfire. ok truck came in P0303 code customer stated it was bucking at 1500rpm under load. Move coil to #2 and P0302 indicated we had a bad coil . After replacing coil customer returned the next day and said it was still bucking at 1500rpm, no codes found but did find ...
May 10, 2012
1999 Honda CR-V EX 2.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JHLRD1866X
P0303: Cylinder 3 Misfire Detected. When first started cold and thrown in gear sometimes will idle low and die/stall. If given more throttle in park will bog down and back fire through intake and hard to get it to go to even 3k rpm. When warmed up will not go above 5k rpm in park/neutral. Once w...
May 11, 2012
1999 Honda CR-V EX 2.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JHLRD1866X
P0303: Cylinder 3 Misfire Detected. When first started cold and thrown in gear sometimes will idle low and die/stall. If given more throttle in park will bog down and back fire through intake and hard to get it to go to even 3k rpm. When warmed up will not go above 5k rpm in park/neutral. Once w...
May 16, 2012
1997 Toyota Corolla 1.6L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 2T1BA02EXV
P0303: Cylinder 3 Misfire Detected. ... not idle,when i got it the o2 sensor was unhooked,blowing black smoke out the tail pipe and it would not idle.we put spark plugs ,distribtor cap and rotor button,oil was full of gas so we changed oil.then it would idle but sill blowing black smoke out the ...
May 16, 2012
2003 Ford Expedition XLT 5.4L Misfire, MIL Lamp on VIN: 1FMFU15L73
P0303: misfire on 3 cyl. this truck come in at around 1pm with the light on scanned codes. performed cylinder balance test no miss found. the truck drives good and no miss is felt nor shows on data pids. i let it cool down and re tested with same results. should i let it sit overnight...
May 18, 2012
2004 Honda Civic GX 1.7L Misfire VIN: 1HGEN26524
P0303: Cylinder 3 Misfire Detected. To all Techs, This Honda is equipped with a CNG fuel system. We replaced all new spark plugs and ignition coils. Engine experience misfire every once in a while especially under load. During misfire condition, fuel injection pulse and ignition coil trigger was...
May 23, 2012
1999 Dodge Dakota 3.9L Misfire, MIL Lamp on VIN: 1B7GL22X9X
P0303: Cylinder 3 Misfire Detected. ... cruising on the highway at 65-7 and then it starts to misfire, he bought a code reader and it always shows p0301,p0302,p0303.. i have changed all plugs, wires cap and rotor and crank sensor any help from here would be gre...
May 30, 2012
1999 Jeep Cherokee Sport 4.0L Misfire, cracked plugs VIN: 1J4FF68S7X
P0303: Cylinder 3 Misfire Detected. we are having a problem with this jeep cracking cyl 3 spark plug. NO CARBON, we have done numerous induction cleanings in the past, thinking it was carbon. I'm stumped. The plug appears fine in color, very light brown, and the deep casing on the plug is closer...
May 31, 2012