Voyager L4-153 2.5L SOHC Turbo (1989)
Idle Speed: Adjustments
1989-90 4 cyl.: Connect DRB-II to "check engine" connector. Disconnect PCV valve and install special tool C-5004 (0.125" orifice) to PCV hose.
Start engine and switch DRB to "Min. Airflow Idle Spd." If minimum throttle body airflow is not correct, throttle body must be replaced.