Question about 1996 Ford Crown Victoria

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Computer rejecting cats.

My 96 ford crown vitoria wont pass E check, the computer is rejecting the cats. why?

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  • bryguy0301 Jun 01, 2009

    hey its bryguy0301, i have been up to E-check 5 times after puting new cats. on my car and there computer is sayin my computer in the car is rejecting the cats. i look in the manual and it said to drive the car for a specific amount of miles and i drive it for a lot more miles then it siad. But they are still telling me that the car is rejecting the cats. do u know is wrong?

  • yadayada
    yadayada May 11, 2010

    never heard of this, what do u mean it is rejecting to the cats? are they new? are u talking about the drive cycle test, u have soemething wrong here with your technical terms.


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U have not completed the drive cycle, this means the system has not finished its internal self testing of the catalytic converters. A drive cycle is about 30-50 miles of mixed driving, stop and go slow medium and freeway speed driving with a more stops and idling.

Posted on Jun 01, 2009

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