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My 2000 cavalier has a heasation problem while

My 2000 cavalier has a hesitation problem while driving at around 3000 rpm's and higher it is a five speed it cut's in & out like a fuel problem i put new parts on it like new fuel pump,fuel fuel filter,fuel pressure regulator,spark plugs and wires,throttle position sensor can any 1 help

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  • minear2 Nov 14, 2009

    But its not throwing a code it acts like its starving for fuel i have a code reader with live data and the o2 is working we have had this car 2 years and no problems my farther in law owned it since it was new and he had no problems either.

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Refer to a wiring diagram. Look to see anything that is connected in series with one of the TPS wiring. Then check if they are open or has a bad connection. It could be a map sensor, or something.

Posted on Nov 14, 2009

  • Ronado Panaligan
    Ronado Panaligan Nov 14, 2009

    Even if it doesnt have a code. I have experienced this same problem where you rev up the motor, and it will not go past 3000RPM. It is as tho the car had a governor that keeps it from going past 3000RPM. In fact this is the only possibility that could make a car act that way without throwing a code. The TPS sensor has three wires to it. There is one single sensor that is connected to one of its pin. Check the connection to that. Let me know what that sensor is, and we may be able to get solve the problem.

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Sounds like an o2 sensor to me

Posted on Nov 14, 2009

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