Friday, February 24, 2012

How to test MAP sensor?

Manifold Absolute Pressure (MAP) Sensor testing for Oldsmobile and other similar vehicles.

The details are as follows :---


As with most all engine control sensors used in your vehicle, a thorough and proper test can only be performed by a qualified technician using a scan tool to read the data stream from the PCM. There are a few items a non-professional should check before taking the vehicle to a qualified technician for diagnosis and repair.

Check for poor connection at the PCM. Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals and poor terminal-to-wire connections.
Look for a damaged harness or damaged wiring going to the MAP sensor, especially if heavy work has recently been done where the connector could have been damaged.
The vacuum hose can deteriorate with age and should always be checked carefully if a MAP problem is suspected.

This will help.

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