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Throttle Position Sensor > < Cold Start Injector Time Switch <--> [Thermo Time Switch]|Locations
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Cold Start Injector Time Switch: Testing and Inspection

Fig. 36 Testing Start Time Switch

5M-GE ENGINES

1.

Disconnect electrical connector to switch and measure resistance between switch terminals Fig. 36.

2.

Resistance should be 30 - 50  ohms below 95 degrees F and 70 - 90 ohms above 95 degrees F.

3.

Measure resistance between STA (B+) terminal and ground. Resistance should be 30 - 90 ohms.

4.

If resistance is not within specifications, switch is defective.

Throttle Position Sensor > < Cold Start Injector Time Switch <--> [Thermo Time Switch]|Locations