Scoupe L4-1468cc 1.5L SOHC (8 VALVE) (1991)
Power Transistor: Testing and Inspection
Power Transistor
Power Transistor Location
To test the Power Transistor, located on the intake manifold, using an analog type circuit tester proceed as follows.
Power Transistor Connector Identification
1.
Disconnect the power transistor connector.
2.
Connect the negative (-) terminal of a 3v power supply (one dry cell) to terminal 2 of the power transistor.
3.
Then check for continuity between terminals 3 and 2 when terminal 1 and the positive (+) terminal of the 3v power supply are connected and
disconnected.
4.
There should be continuity between 2 and 3 with terminal 1 connected to power supply. There should be no continuity between 2 and 3 with
terminal 1 disconnected from power source.
If the Power Transistor fails these tests, replace the Power Transistor.