FixVault

Evaporative Emissions DTCS

EVAPORATIVE EMISSIONS DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Source Perform Test
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 Small leak detected in EVAP system. As small as 1.508 mm (0.020 inch). 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 .