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P0455 Diagnostic Trouble Code Discussion for September 2012

EVAP System Large Leak


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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2007 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E07
P0455: Evap large leak detected. ... and P0455. I checked the system and found the purge solenoid was defective. Replaced it and 3 days later code P0455 returned. Smoke tested and no leaks found. Replaced the leak detection pump as per the flow chart on Mitchell and thought all was good. No s...
September 10, 2012
1998 Ford Escort SE 2.0L Hesitation VIN: 1FAFP13P5W
P0455: gross evap leak -which was traced to fuel cap. Car in question has low power(sag) during the first minute or so of running. Whether cold or sitting for a half hour or so. You try to accel and there is a holding back and then suddenly it takes off and is okay the rest of the drive. Sometimes you can just st...
September 19, 2012
1998 Ford Escort SE 2.0L Hesitation VIN: 1FAFP13P5W
P0455: gross evap leak -which was traced to fuel cap. Car in question has low power(sag) during the first minute or so of running. Whether cold or sitting for a half hour or so. You try to accel and there is a holding back and then suddenly it takes off and is okay the rest of the drive. Sometimes you can just st...
September 20, 2012
2007 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E07
P0455: Evap large leak detected. ... and P0455. I checked the system and found the purge solenoid was defective. Replaced it and 3 days later code P0455 returned. Smoke tested and no leaks found. Replaced the leak detection pump as per the flow chart on Mitchell and thought all was good. No s...
September 10, 2012
1998 Ford Escort SE 2.0L Hesitation VIN: 1FAFP13P5W
P0455: gross evap leak -which was traced to fuel cap. Car in question has low power(sag) during the first minute or so of running. Whether cold or sitting for a half hour or so. You try to accel and there is a holding back and then suddenly it takes off and is okay the rest of the drive. Sometimes you can just st...
September 19, 2012
1998 Ford Escort SE 2.0L Hesitation VIN: 1FAFP13P5W
P0455: gross evap leak -which was traced to fuel cap. Car in question has low power(sag) during the first minute or so of running. Whether cold or sitting for a half hour or so. You try to accel and there is a holding back and then suddenly it takes off and is okay the rest of the drive. Sometimes you can just st...
September 20, 2012