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i was driving home last night and CEL came on , it came back as PO411 on a snap on scanner . something to do with the air pump .i got this code last year when i was running my Bassani High flow cat x pipe .and i have MILS on it. but when i took it off and put on a off road x pipe it went away but it came on for the first timw with the off road x pipe last night .any one else have this code come up and what did u do about it ???i know my air pump works cause last year i had ford to a test onit and it was turing on just fine let me know what u guys think


thanks
chris
 
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