I get a Code 1404 (Manufactor auxilary emissions contro)l. Can you tell me what to check to correct this problem?
Aug 15, 2010 at 4:33 PM
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GMTECH
CAR REPAIR CONTRIBUTOR
537 POSTS
The code that you have is for the egr valve. It is probably best to take it to a dealer to have checked out. It needs the scan tool to monitor the operation of the valve as it could the egr, pcm or wiring.
Oct 24, 2010 at 7:56 PM
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