Gm Knock Sensor Wiring Diagram

Car or truck needs a new knock sensor and wiring harness then it probably needs the throttle body and iac valve cleaned as well. Pickup gmc s15 1990 2dr pickup wiring information. Fullsize gmc jimmy 1986 2dr suv wiring information.

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They produce voltage based on engine vibration and noise level.

Gm knock sensor wiring diagram. The knock sensor uses two flat response two wire sensors. 12 03 04 knock sensor connection 8 13 crankshaft position sensor 9 14 cam prosition sensor 10 14 map sensor 11 14 driver side coil connector 12. The knock sensor sends a signal to the pcm the truck engine s computer to tell the computer about ignition timing. Knock sensor wiring harness.

1993 gmc sonoma 2dr pickup wiring information. The knock sensor on your gm engine is designed to sense detonation in the engine that causes a knocking noise from an improper air fuel spark ratio. If the sensor goes out then the. The ecm sends a precise 5v reference to the thermistor and uses the return voltage to establish temperature by.

1993 gmc typhoon 2dr suv wiring information. If your ls v 8 powered general motors corp. Ect sensor connects directly to ecm with two wire connector gm p n 12146312 or 29036979 delphi ts10075 used widely in gm vehicles sensor is a non linear thermistor which varies resistance with temperature. In addition to the gm knock sensors there are also japanese one 1 and two 2 wire knock sensors and german two 2 terminal sensors.

Connector pre installed also all wire has been gm color coded. The sensor takes that information and sends it to the computer which in turn retards the timing on the engine to fix the problem. Black white is one wire with a stripe. Fullsize gmc van 1988 van wiring information.

On two wire sensors one wire is a ground. On some sensors you can identify which terminal is ground by checking for continuity from the terminals to the metal sensor housing. 1992 gmc safari minivan wiring information. Of course you should replace the intake manifold gasket and clean all of the parts.

All fuel injected chevrolet trucks with gas engines as opposed to diesel engines use a knock sensor. In the case of the example shown black white. Fullsize gmc jimmy 1991 2dr suv wiring information. S series gmc jimmy 1989 2dr suv wiring information.