Engine Light ON (or Service Engine Soon Warning Light)
P0663 Possible Causes
Faulty Intake Manifold Tuning Valve (IMTV),Intake Manifold Tuning Valve harness is open or shorted,Intake Manifold Tuning Valve circuit poor electrical connection
P0663 Description
The Powertrain Control Module (PCM) continuously monitor the Intake Manifold Tuning Valve (IMTV) system during Key ON engine OFF or key ON engine running self-test. The PCM sets the OBDII code when the signal on is more or less than the expected calibrated range.
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