B Series Truck 2WD L4-2184cc 2.2L 2200 2-bbl (1990)
A-B
0.7-6.0 kOhms
Checking Vent Valve
DUTY SOLENOID VALVE VENT VALVE INSPECTION
1.
Disconnect the vacuum hoses.
2.
Blow through the vent hose and verify that air passes.
3.
Disconnect the duty solenoid valve connector.
4.
Apply battery power and ground the solenoid valve as shown.
5.
Blow through the vent hose and verify that air does not flow.
6.
If a problem is found, replace the duty solenoid valve.
Checking Vacuum Valve
DUTY SOLENOID VALVE VACUUM VALVE INSPECTION
1.
Disconnect the vacuum hoses.
2.
Blow through the vacuum hose and verify that air does not flow.
3.
Disconnect the duty solenoid valve connector.
4.
Apply battery power and ground the solenoid valve as shown.
5.
Blow through the vacuum hose and verify that air passes.
6.
If a problem is found, replace the duty solenoid valve.
Checking Duty Solenoid Valve Connector
DUTY SOLENOID VALVE VOLTAGE INSPECTION
1.
Remove the rubber boot from the connector.
2.
Turn the ignition switch ON.
3.
Using a voltmeter, verify that voltage at each terminal is approximately 12V.
4.
If on any terminal it is not, check the duty solenoid valve, the wiring of the valve, and the "2C" and "2D" terminals of the engine control unit.
