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Hey people, so I ventured to Advance Auto parts today and got my car (Service Engine Soon) light checked out.. Heres' the read out, code #1:


P0440: Evap Emission Control System Malfunction

P1448: Manufacturer Control Auxiliary Emissions Control

I was told that one code was probably my gas cap not being on tight, but I checked that out, It's on as tight as it will go,maybe its time to invest in a new cap ?? And he told he didn't know about the other one. So that's why i'm bringing my information here... I thought there was a code analysis somewhere on the web, but I don't remember where. Any help would be greatly appreciated, and if this has been posted numerous times, i'm sorry forgive me for the repeat.
 

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If you think it may be the cap, I'd clear the codes and run through another tank of gas. See if it comes back. No point replacing parts if they don't need it. If the codes do come back, then you do actually have a problem.
 
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