Testing and Inspection of Oxygen Sensor on Carbureted B Series Truck 2WD L4-2184cc (1990)
Self Diagnostic Checker
8. Increase the engine speed to between 2,000 and 3,000 rpm and check that monitor lamp flashes for 10 seconds. It should flash eight or more times
in the ten second period. Disconnect diagnostic tester.
Oxygen sensor input voltage can be check at ECU terminal 2N.
