Cadillac Tech Tips - How to fix it Discussion, P0410 Secondary AIR in Item Specific Cadillac Discussion; I just fixed this problem and wanted to put the info out there. Mine was not the AIR motor, I ...
- 08-22-09 06:15 PM #1Cadillac Owners Member
- Automobile(s): 2003 Deville
- Join Date
- Jun 2009
P0410 Secondary AIR
I just fixed this problem and wanted to put the info out there. Mine was not the AIR motor, I could hear it running every cold start. I checked the solenoid and it was working. I then checked each check valve with a vacuum pump and found the rear one not pulling a vacuum. I plugged the vacuum hose going to the rear check valve and the code went to P1415 (AIR system bank 1). Replaced the valve, no more check engine light.
- 08-22-09 08:54 PM #2
Re: P0410 Secondary AIR
Good catch. Thanks for the feedback.
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