Emission Control

Both EGR and canister purge operation are regulated by the ECU. Regulation of these 2 systems is accomplished through the use of 2 electrically operated vacuum solenoids. The EGR solenoid and canister purge solenoid are located on left front strut rod tower.

The EGR system is prevented from operating until the engine reaches a predetermined temperature. This improves cold driveability. The canister purge does not operate until the oxygen sensor warms up and becomes operational. This prevents an over-rich mixture until the oxygen sensor can compensate for the extra fuel vapor.