Quote:
Originally Posted by Cornflakes'Camaro
I have headers w/ mid pipes...is the CEL because of the mods?
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Nope.
P0449 only has two known causes. Loose gas cap, or bad purge canister/solenoid.
If it's the canister or solenoid check Autozone or Advance before you go to the dealer. We recently had the same issue on my dads '03 Impala. The dealer wanted $300 to replace it. I went to Autozone and got the part for $35 and changed it in less then 5 mins.