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What are the PCM pins for 1994 to 1997?

What are the PCM pins for 1994 to 1997?

The following PCM Pinouts will cover all LT1, 1994 to 1997. There are notes in the Functions column that may say this was only in a F-Body, or B-Body, etc. Also all 1996+ OBD2 pins are listed, of course, if you have a 1994 or 1995 those pins will be empty.

Where do the wires go in a PCM?

WIRES THAT ARE NOT HIGHLIGHTED REMAIN UN TOUCHED. THEY WILL GO DIRECTLY FROM PCM TO A PLUG, (SENSOR, SWITCH, DEVICE ETC.) PCM Connector C1 (RED) Pin

Do you need a pin out chart for a PCM?

Because this is the clearest indication that these ARE NOT the connector pin out charts for your particular vehicle. Never probe the front of the connector. You should use a wire piercing probe and probe the wire a few inches away from the connector.

When to replace your PCM ( and when not to )?

The onboard computer is the brains of the engine control system, so when the brain isn’t functioning correctly neither is the engine or anything else that the microprocessor controls – which may include the charging system, transmission, various emission controls and communications with other onboard control modules.

The following PCM Pinouts will cover all LT1, 1994 to 1997. There are notes in the Functions column that may say this was only in a F-Body, or B-Body, etc. Also all 1996+ OBD2 pins are listed, of course, if you have a 1994 or 1995 those pins will be empty.

WIRES THAT ARE NOT HIGHLIGHTED REMAIN UN TOUCHED. THEY WILL GO DIRECTLY FROM PCM TO A PLUG, (SENSOR, SWITCH, DEVICE ETC.) PCM Connector C1 (RED) Pin

What are the pin out charts for PCM?

1998-99 PCM Connector Pin Out Charts (GM 4.3L, 5.0L, 5.7L). Each connector can be identified as: C1 Blue (32 Pin Connector). C2 Red (32 Pin Connector). C3 Clear -or Grey- (32 Pin Connector). C4 Black (24 Pin Connector). Contents of this tutorial: C1 Blue. C2 Red. C3 Clear -or Grey-. C4 Black.

How many connectors does a PCM 4.3L have?

The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4.3L, 5.0L or 5.7L Engine has a total of 4 connectors. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E). 1994 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS with A/T).

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Ruth Doyle