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2001 Nissan exterra

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  • July 12, 2012 at 11:00 am #459237
    Trcustoms719Trcustoms719
    Participant

      How high is it revving up?_x000D_
      Is it an auto or manual transmission?_x000D_
      Do you have a check or service engine soon light on?_x000D_
      _x000D_

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    Viewing 12 replies - 1 through 12 (of 12 total)
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    • July 12, 2012 at 11:00 am #459238
      MattMatt
      Participant

        Here’s where I’d look first._x000D_
        _x000D_
        Vacuum leaks:_x000D_
        _x000D_
        http://www.youtube.com/watch?v=9CPqbaSgcok_x000D_
        _x000D_
        Especially if the car uses a MAF sensor, make sure you don’t have any leaks in the air tube between the airbox and the throttle body.

        July 13, 2012 at 11:00 am #459239
        college mancollege man
        Moderator

          did you clean or disconnect the throttle body?do you have a check_x000D_
          engine light on? if so post codes. Has any work been done?

          July 13, 2012 at 11:00 am #459240
          Lug nutLug nut
          Participant

            Quoted From Trcustoms719: _x000D_
            _x000D_
            How high is it revving up?_x000D_
            Is it an auto or manual transmission?_x000D_
            Do you have a check or service engine soon light on?_x000D_
            _x000D_

            _x000D_
            _x000D_
            About 2600 rpm’s and then drops back down service engine soon is on just got

            July 13, 2012 at 11:00 am #459241
            Lug nutLug nut
            Participant

              Quoted From college man: _x000D_
              _x000D_
              did you clean or disconnect the throttle body?do you have a check_x000D_
              engine light on? if so post codes. Has any work been done?

              _x000D_
              _x000D_
              No I did not.I did take the upper intake manifold off to get to the fuel pr

              July 13, 2012 at 11:00 am #459242
              college mancollege man
              Moderator

                if the service engine light is on. then some codes should be stored._x000D_
                can you go to an auto store and have the codes read and post back?_x000D_
                unless you have a code reader/scanner. also what engine do you have?_x000D_

                July 13, 2012 at 11:00 am #459243
                Lug nutLug nut
                Participant

                  Quoted From college man: _x000D_
                  _x000D_
                  if the service engine light is on. then some codes should be stored._x000D_
                  can you go to an auto store and have the codes read and post back?_x000D_
                  unless you have a code reader/scanner.

                  _x000D_
                  _x000D_
                  Yes I’m going to do that

                  July 13, 2012 at 11:00 am #459244
                  EricTheCarGuy 1EricTheCarGuy
                  Keymaster

                    First go back and check your work especially if this happened after you did this work.

                    July 14, 2012 at 11:00 am #459245
                    Lug nutLug nut
                    Participant

                      [quote]Quoted From EricTheCarGuy: _x000D_
                      _x000D_
                      First go back and check your work especially if this happened after you did this work.

                      July 14, 2012 at 11:00 am #459246
                      Lug nutLug nut
                      Participant

                        [quote]Quoted From EricTheCarGuy: _x000D_
                        _x000D_
                        First go back and check your work especially if this happened after you did this work.

                        July 15, 2012 at 11:00 am #459247
                        college mancollege man
                        Moderator

                          p0120 – throttle position sensor_x000D_
                          p0325- knock sensor_x000D_
                          need to know engine size? 4or 6 cylinder_x000D_
                          check the connectors at the TPS and the knock sensor._x000D_
                          make sure they are seated. also look for any loose grounds._x000D_
                          also check for any vacuum lines unplugged.

                          July 15, 2012 at 11:00 am #459248
                          dreamer2355dreamer2355
                          Participant

                            The TPS is easily tested with a DVOM by sweep testing it. You will need a wiring diagram though. That way you can check your power, grounds and signal wires._x000D_
                            _x000D_
                            You also may want to check the TB for carbon build up._x000D_
                            _x000D_
                            The P0325, again check for power and

                            July 16, 2012 at 11:00 am #459249
                            EricTheCarGuy 1EricTheCarGuy
                            Keymaster

                              Great suggestions above and personally with the idle problem I’d be looking at the TPS readings to start since if that reading is off it can effect the idle.

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