service engine light on. Diagnostic code P0440

Asked by Mar 01, 2014 at 04:59 PM about the 1999 Pontiac Grand Am 4 Dr GT Sedan

Question type: Maintenance & Repair

I have a 1999 Pontiac Grand AM GT.  I just noticed the "service engine soon" light came on.  The code reader shows error code P0440.  Can anyone tell me just what that code is for?
Thanks
Ray

1 Answer

236,975

http://www.obd-codes.com/p0440

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