OBD2 codes P0442 and P0455
My 2001 Jeep TJ has recently logged 2 codes, P0442 and P0455,can anyone tell me what these codes are and how to fix them.Thanks
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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. |
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