Question

Had water pump replaced on 2003 Cadillac DeVille, P0410 now detected, can this be related to the water pump?

Answer 1

No it is not related

 

Possible causes

- Faulty Vacuum hoses damaged

- Faulty Air Pump inoperative

- Air bypass solenoid harness is open or shorted

- Air bypass solenoid circuit poor electrical connection

- Air bypass solenoid leaking/blocked or stuck open/closed

- Air diverter valve leaking/blocked or stuck open/closed