Dual Reed Valve System
- Disconnect air hose at air cleaner. Start engine and warm to operating temperature. Accelerate engine to 4000 RPM and as engine is decelerating, feel for suction at air hose.
- If suction is confirmed, system is functioning correctly. If system does not perform as specified, attach jumper wire (or test light) between Red/White wire of air control solenoid valve and ground. An audible signal should be heard (or felt) and suction felt at the hose.
- If suction is felt, fault is in the ECU. If suction is not felt, inspect Black/White wire at solenoid to verify voltage. Repair circuit if necessary and repeat step 1).
- If voltage is available, attach vacuum pump to secondary air control valve. With 18 in. Hg vacuum applied, suction should be felt at the air supply hose. If suction is confirmed, replace secondary air control solenoid valve. If not, replace secondary air control valve.