OBD2 codes P0442 and P0455
OBD2 codes P0442 and P0455
04-05-2009, 12:34 PM
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Re: OBD2 codes P0442 and P0455
P0442 - Evaporative Emission Control System Leak Detected (small leak)
P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)
Often times it's a gas cap issue (P0442) so check that first.
Other possibilities are:
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
If the gas cap seems OK, then inspect the EVAP system for cuts or damage to tubes and hoses.
P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)
Often times it's a gas cap issue (P0442) so check that first.
Other possibilities are:
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
If the gas cap seems OK, then inspect the EVAP system for cuts or damage to tubes and hoses.
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