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Electronic Spark Timing <--> [Electronic Spark Control Module] > < Coolant Temperature Sensor/Switch (For Computer)|Description and Operation

Caprice Classic V8-305 5.0L VIN E TBI (1991)

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Reference Signal: Description and Operation

Wiring Diagram For Crank Signal

The computer uses this signal to tell when the vehicle is in the CRANKING mode.  This information is used to allow enrichment and cancel diagnostics
while engine is cranking.

Electronic Spark Timing <--> [Electronic Spark Control Module] > < Coolant Temperature Sensor/Switch (For Computer)|Description and Operation