DTC P0441: Incorrect EVAP Purge Flow Or DTC P0446: EVAP Vent Control Circuit: Notes

CAUTION: If ECM replacement is instructed in following tests, always ensure ECM connectors and ground circuits are okay. If either are defective, repair and repeat testing to confirm ECM malfunction.

NOTE: If DTCs P0441, P0446, P0450 or P0451 is output after DTC P0440, perform appropriate test first before performing DTC P0440 test.

NOTE: For component location, see appropriate illustration in THEORY & OPERATION article.