2000 Deville DTS engine codes, please help

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Northstar Engines and System Technical Discussion Discussion, 2000 Deville DTS engine codes, please help in Cadillac Engine Discussion; Hello, Just noticed I asked for help in the wrong spot when I first posted the following.........going to include the ...
  1. #1
    farmjazz is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Apr 2007

    2000 Deville DTS engine codes, please help


    Just noticed I asked for help in the wrong spot when I first posted the following.........going to include the same question here for some guidance in resolving a couple codes showing in a car:

    Steve here. I replaced the MAP sensor over a month ago after getting a code for the sensor, car has run great for about 3,000 miles since. Today, engine idles fast, making initial shifting hard. Getting codes for P0106 and P0122............Map system performance, and TPS circuit low voltage. What do I do. Seemed replacing the MAP sensor did the trick before, hard to believe the new one went out, especially when getting another code for TPS circuit low voltage. I don't know where that sensor is yet, found the MAP sensor by replacement part number matching what was in the car.

    Going to mention, just in case it might somehow matter, that earlier today the car was hit by a bird just below the right headlight, small piece of front bumper cover broke just below the headlight.

    I would appreciate some direction in resolving the problem.

    Thank you,


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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Re: 2000 Deville DTS engine codes, please help

    TPS is on the side of the TB in line with the throttle plate pivot. Other than that, I don't know what to tell you. Ewill3rd may be able to help.

  4. #3
    ewill3rd is offline Cadillac Technician
    Automobile(s): none
    Join Date
    Nov 2005

    Re: 2000 Deville DTS engine codes, please help

    Sorry I am tardy on this one.
    Sounds like you have a connection problem at the MAP sensor or a problem with the 5V reference.
    Is this car still acting up?
    Give a tug on each wire at the MAP sensor, one might be broken inside the insulation. When you replaced the sensor you "fixed" the problem temporarily.
    The insulation will stretch if the wire is broken.
    You can get a "pigtail" for the MAP sensor from an AC Delco supplier.

    MAP sensors don't fail that often.

  5. #4
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Rock Hill SC

    Re: 2000 Deville DTS engine codes, please help

    49____ GRY ______ 2704___5 Volt Reference A - MAP Sensor Feed

    50____ GRY________2702__ 5 Volt Reference A - EGR Pintle Position Sensor Feed

    51____ GRY________2701___5 Volt Reference A - TP Sensor Feed

    Hmmm EGR short?

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