Question about 1997 Acura CL

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1997 Acura CL check engine light still on

My check engine light came on, so i took it to the shop and they advised me that i had a hole in my center muffler. so i had it replaced with a new one. the check engine light went away. after driving about 200 miles, the check engine light came back on. i reseted it and it comes back on after driving around for a couple days.. what should i do next?

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  • deezflava Sep 20, 2008

    thanks for the good advice i took it to autozone and got a code P0401 egr system fault. i just had my center muffler fix. does this mean they didnt fix it right or is this a completly different issue? What is my next step you would advised for me.

  • cjan1118 Apr 11, 2009

    It is the same issue I took it to the mechanic after $412.00 later the light came back on after driving for 50 miles.

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Have autozone scan it they can give you the codes hope it helps its freee

Posted on Sep 18, 2008

  • Jimmy
    Jimmy Sep 20, 2008

    the computer monitors the "egr flow" thru electronic or o2 sensors. this is what i found.......... P0401] The scan tool indicates Diagnostic Trouble Code (DTC) P0401: Insufficient flow in the Exhaust Gas Recirculation (EGR) system.
    Possible Causes


    • Clogging, leakage in the EGR line
    • Faulty EGR valve

    • Description
      Deterioration (clogging, leakage, etc.) in the EGR line or EGR valve is detected by means of the changes in MAP before and after the operation of the EGR valve. If deterioration has been detected during two consecutive driving cycles, the MIL will come on and DTC P0401 will be stored.

    try cleaning it first. reset the code have autozone clear it for you. good luck jimmy

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