B Series Truck L4-2184cc 2.2L 2200 (1988)
Air/Fuel Solenoid Valve: Testing and Inspection
Inspection of Valve
1.
Warm up engine and run at idle.
Fig. 3 Air/fuel solenoid check connector.
2.
Connect a dwell meter to the A/F check connector (Br/Y) and check to see that the dwell meter indicates within 20°-70°.
3.
Using a jumper wire, ground the A/F check connector and check to see that the engine speed drops.
4.
If it does not, clean the A/F solenoid valve or replace the valve.
Note: Clean with carburetor cleaner spray and blow out with compressed air, but do not submerge in cleaner. For valve replacement parts information,
see TSB.
