DTC P0450 Or DTC P0451: Notes

Code Definition

DTC P0450: EVAP Pressure Sensor Circuit
DTC P0451: EVAP Pressure Sensor Range/Performance

CAUTION: If ECM replacement is instructed in following testing, always ensure ECM connectors and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. If ECM is replaced, ECM must be programmed with proper ignition key code for engine immobilizer system. For programming procedures, see COMPUTER RELEARN PROCEDURES - IMPORT article in GENERAL INFORMATION or appropriate ENGINE IMMOBILIZER SYSTEMS article in ACCESSORIES & EQUIPMENT.

NOTE: If DTC P0441, DTC P0446, DTC P0450 or DTC P0451 is output after DTC P0440 or DTC P0442, perform appropriate test first before performing DTC P0440 or DTC P0442 test.

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