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Help P0401

This is a discussion on Help P0401 within the General Help forums, part of the LSx Technical Help Section category; I Just Bought This Car Last Week And It Got A Check Engine Light I Went To Autozone And Borrowed ...

  1. #1
    Junior Member
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    2001 camaro

    Help P0401

    I Just Bought This Car Last Week And It Got A Check Engine Light I Went To Autozone And Borrowed A Scanner I Am Wondering If The Air Pump Was Just Taken Off There Stuff Done To This Car That Iam Not Aware Of It Has Exhaust And K&n Filter There Is Slp Stickers Under The Hood But I Don't Know What I Am Pretty Sure Its Not A Maf)any Info Would Help Thanks

  2. #2
    38 of 139 PontiacFan's Avatar
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    2001 Pontiac

    Slow down man, ..., Slow down.
    And watch your puncuation. Wait, ..., there was none. What as I thinking?


    SLP stickers don't mean crap.
    What was the result of the scan test? P0401?
    Someone else can tell ya what that means. I can't.
    Did the guys at AutoZone tell what the P0401 meant?

  3. #3
    Slow SS
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    2002 Chevy Camaro

    That code corresponds to poor egr flow. Google search it and it will give you your answer. The only negative effect it will have is causing you to fail an inspection. If the car has aftermarket headers it probably has the EGR valve blocked off. This mod keeps the engine from injecting exhaust gasses back into the intake. It will get you better milage and a slight power increase. IF it is not already blocked off, do so, then take it to a tuner and have them tune the code out.

    Or if you want your car on the up and up emissions wise, just pull the egr valve off and clean it with some carb cleaner then clean out the hoses too.

  4. #4
    Slow SS
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    Quote Originally Posted by PontiacFan View Post
    Slow down man, ..., Slow down.
    And watch your puncuation. Wait, ..., there was none. What as I thinking?
    Amen, I have that pet peeve as well. If you are going to ask me for help, I would rather not have to decipher what you are trying to say.

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