P1005 Chevrolet Manifold Tunning Valve Control Performance

Possible causes

– Manifold tunning valve harness open or shorted
– Manifold tunning valve circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1005 Chevrolet Description

This Powertrain Control Module (PCM) compares the circuit feedback to a calibrated closed range when when the circuit is de-energized or to a calibrated open range when the circuit is energized. If the value is to be determined to be out of the calibrated range in either the de-energized.