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Where is engine control module on 1990 Chevy G20 van 4.3l v6?

On a 1990 Chevy G20 van with a 4.3L V6, the Engine Control Module (ECM), also sometimes called the Powertrain Control Module (PCM), is typically located under the dash, on the driver's side. However, it's not always in the exact same spot across all models.

To be certain, you should:

* Consult your owner's manual: This is the best resource for the exact location in your specific van.

* Check a repair manual: A Haynes or Chilton manual for your year and model will have diagrams showing the ECM location.

* Look for a large, rectangular black box: The ECM is usually a fairly large module with many connectors. Look carefully under the dash on the driver's side, perhaps behind the glove box or under the steering column.

Be cautious when working near the ECM as it's sensitive to static electricity.

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