1986 Chevrolet Astro Repair Question
There are two temp sensors, not sure which one you replaced? The cts has a two wire connector, yellow and black. The computer monitors the voltage on the yellow wire, stone cold about 5 volts. As the engine warms up, the voltage goes down. If a problem with wiring circuit, voltage won't go down. I need to mention the cts and tps share the same ground, a problem on one sensor circuit can cause a problem for the other sensor.
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