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Evaporative Emissions DTCS

EVAPORATIVE EMISSIONS DIAGNOSIS DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Source Action
P0442 Small Leak Detected in EVAP System (as small as 1.02 mm (0.040 inch). PCM Go To PINPOINT TEST A .
P0455 Major Leak or No Flow Detected. PCM Go To PINPOINT TEST B .
P0456 Very Small Leak Detected in EVAP System (as small as 0.51 mm (0.02 in). PCM Go To PINPOINT TEST A
P0457 Loose or Missing Fuel Cap. PCM Go To PINPOINT TEST A
P1443 Very Small or No Purge Flow Detected. PCM Go To PINPOINT TEST B .
P1450 Excessive Vacuum Detected in the Fuel Tank. PCM Go To PINPOINT TEST C .
- Any Other PCM DTC. PCM REFER to the INTRODUCTION - CNG, FLEX-FUEL & GASOLINE article.