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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Cleaned my throttle body and now car idles rough in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Never ever move an electronic throttle body by hand. Have a second person or something to depress the gas pedal. ...
  1. #16
    jran0823's Avatar
    jran0823 is offline Cadillac Owners Enthusiast
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    Never ever move an electronic throttle body by hand. Have a second person or something to depress the gas pedal. By moving the throttle plates by hand you can severely damage the throttle body motor that controls the plates. Turn the key to run and work the pedal inside.

  2. #17
    san2cci's Avatar
    san2cci is offline Cadillac Owners Fanatic
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    Re: Cleaned my throttle body and now car idles rough

    Does anyone know if the relearn procedure is correct? Because the procedure I have includes the use of a Tech 2...just curious

  3. #18
    CTSUK's Avatar
    CTSUK is offline Cadillac Owners Enthusiast
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    Re: Cleaned my throttle body and now car idles rough

    Quote Originally Posted by q.c.cadi.cts View Post
    HI I AM A MECANIC FOR 10 YEARS AND I GOT A CADILLAC CTS 2003.
    I SEE ALOT A PEOPLE ON THIS SITE WHO TALK ABOUT THE (TPS).
    AND SAID THE (TPS) IS INSIDE THE TROTTLE BODY ASSEMBLY ON THE CADILLAC CTS 2003-2004.
    ITS TOTALLY ROUGH THE (TPS) IS INSIDE THE (PPA) (PEDAL POSITION SENSOR)AND NOT INSIDE OR OUTSIDE FROM THE TROTTLE BODY.
    IF THE (DTC) (DIAGNOSTIC TROUBLE CODE) SHOOT (TPS) SENSOR YOU BETTER CHANGE THE ALL COMPLETED GAS PEDAL.
    THE BLACK MODULE ON THE SIDE HOV THE TROTTLE BODY CONTAIN ELECTRICAL COMPONENT.
    (1 ELECTRICAL MOTOR 3 LITTLE GEARS AND 4 ELECTRIC RESISTOR) NO (TPS) ON THE TROTTLE.
    THE (DTC) IS........
    P0220 Throttle Pos Sensor/Switch B Circ Error
    P0221 Throttle Pos Sensor/Switch B Circ Range/Perf
    P0222 Throttle Pos Sensor/Switch B Circ Lo Input
    P0223 Throttle Pos Sensor/Switch B Circ Hi Input
    P0224 Throttle Pos Sensor/Switch B Circ Interm
    P0225 Throttle Pos Sensor/Switch C Circ Error
    P0226 Throttle Pos Sensor/Switch C Circ Range/Perf
    P0227 Throttle Pos Sensor/Switch C Circ Lo Input
    P0228 Throttle Pos Sensor/Switch C Circ Hi Input
    P0229 Throttle Pos Sensor/Switch C Circ Interm

    ALL IS ABOUT A BAD (PPA) OR BAD WIRERING DON T FORGET.
    IF YOU FIX THE (PPA-TPS) AND NOTING CHANGE. ITS PROBABLY THE TROTTLE LOW VOLTAGE READING OR BAD WIRERING HARNEST.
    AND THE WORST CASE IS (ECM) CAR COMPUTER.

    THE (DTC) CODE FOR THE TROTTLEL IS.....
    P0219 Throttle Sw B Circ Error/Eng Over speed Condition.
    IF THIS APPEN TO YOU CHANGE THE COMPLITED TROTTLE ASEMBLY AFTER YOU ALLREADY FIX THE (PPA)PEDAL POSITION SENSOR.
    YOUR PROBLEME STILL SEND THEM TO THE DEALER AND SAID TO THE MECANIC CHECK WIRE AND (ECM)



    NEED HELP JUST ASK.
    I do need a little help, on a technical issue that involves your keyboard lol, I am hoping that the caps lock may be has a fault with it and requires either a press or replacement as all your posts are in BLOCK CAPITALS, many thanks!

  4. #19
    Lzr
    Lzr is offline Cadillac Owners Fanatic
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    Re: Cleaned my throttle body and now car idles rough

    Quote Originally Posted by jran0823 View Post
    Never ever move an electronic throttle body by hand. Have a second person or something to depress the gas pedal. By moving the throttle plates by hand you can severely damage the throttle body motor that controls the plates. Turn the key to run and work the pedal inside.
    K thanks for the tip,

    but by pressing the gas pedal with the key on, won't that flood the engine ?

    so i take it, i should clean it with it installed and do not have to remove it to clean it properly.

  5. #20
    ShapeShifter's Avatar
    ShapeShifter is offline Cadillac Owners Enthusiast
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    Re: Cleaned my throttle body and now car idles rough

    Quote Originally Posted by jran0823 View Post
    Never ever move an electronic throttle body by hand. Have a second person or something to depress the gas pedal. By moving the throttle plates by hand you can severely damage the throttle body motor that controls the plates. Turn the key to run and work the pedal inside.
    Nice to know info. Thanks!!

  6. #21
    Argent1's Avatar
    Argent1 is offline Cadillac Owners Connoisseur
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    Re: Cleaned my throttle body and now car idles rough

    Can't flood, it's a dry system. Fuel only comes from the injectors, when motor is running.
    Lzr and Lzr like this.

  7. #22
    jran0823's Avatar
    jran0823 is offline Cadillac Owners Enthusiast
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    Fuel pump kicks in for a second to pressurize the fuel system, but as soon as the fuel system is pressurized the pump kicks back out until you start the engine.

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