BOSCH Cis Fuel Injection - SAAB & VOLVO: Testing: Injectors: Saab
- Remove rubber bellows from airflow sensor. Unscrew injection valves from intake manifold. Place injectors in a container without disconnecting fuel lines.
- Install jumper wires in fuel pump circuit and turn ignition ON to activate fuel pump. Lift lever in airflow sensor. Injectors should spray an even cone-shaped pattern of fuel. If not, clean or replace defective injectors.
- Turn ignition switch OFF to obtain line pressure. With clean cloth, wipe injectors dry. Lift sensor lever again and check for leakage at injector nozzle tips. No fuel should leak within 15 seconds. If so, replace defective injectors.