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Cadillac Catera and Cimarron Forum Discussion, Check Engine light not lighting up in Past Cadillac Vehicle Discussion; I'm gonna bump this since I'm getting the same DTC with CEL. Any know the exact location of the valve ...
  1. #46
    Matera97's Avatar
    Matera97 is offline Cadillac Owners Fanatic
    Automobile(s): '97 Catera (Ocean)
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    Re: Check Engine light not lighting up

    I'm gonna bump this since I'm getting the same DTC with CEL. Any know the exact location of the valve and selenoid in the engine bay?

  2. #47
    USEDCAT is offline Cadillac Owners Fanatic
    Automobile(s): Catera 2001
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    Re: Check Engine light not lighting up

    Quote Originally Posted by Matera97 View Post
    I'm gonna bump this since I'm getting the same DTC with CEL. Any know the exact location of the valve and selenoid in the engine bay?
    Matera97, people in the UK just disconnect the SAI motor by disconnecting the electrical connection to the motor. The motor is located near front left if you trace the air hose from the control valve.



    Do not disconnect the relay as it will set DTC but disconnecting the SAI motor does not do anything.

    This system works on cold starts to heat up O2s faster as well as on extended idles like stop lights, etc. Primary function is Emission control in those scenarios.

    Good luck

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