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Home >> Chevrolet >> 1988 >> Astro Van M L4-151 2.5L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Throttle Position Sensor >> Adjustments
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Throttle Position Sensor: Adjustments

The TPS is not adjustable. The ECM utilizes the IAC position reading at idle for its zero reading, therefore no adjustment is necessary.