Originally Posted by dragonbal7
How a Air bag impact Sensor would be the cause of knock sensor to go off . That doesn't make sense.
You have two codes pointing to both knock sensors. For some reason we are also talking about the IACV (Idle Air Control Valve), this controls the car's idle when the throttle is shut. No one has said anything about air bag impact sensors until your post above??
You probably need to have both sensors replaced with OE parts if aftermarket parts were installed and/or have the knock sensor wiring harness replaced at the same time.