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  • #31
    Re: What is wrong with my car?

    what about the fuel pump secondary code what does that mean? or the
    Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance im

    pulled the TB off, has like some black **** stuck on around the inside, should probably clean inside my uim and lim
    Wait, Is that a V6 or V8?
    1990 Chevrolet C-K 1500 series 4.3L .. 5spd
    1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
    2000 Camaro 3.8L Auto Bolt Ons..etc

    Comment


    • #32
      Re: What is wrong with my car?

      Update: replaced the TB.. still doing this.. I guess coil packs now?
      Wait, Is that a V6 or V8?
      1990 Chevrolet C-K 1500 series 4.3L .. 5spd
      1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
      2000 Camaro 3.8L Auto Bolt Ons..etc

      Comment


      • #33
        Re: What is wrong with my car?

        Originally posted by ACiFiC View Post
        Update: got a bunch of codes now..

        p0300 - Random Multiple misfires

        DTC P1120 Throttle Position (TP) Sensor 1 Circuit
        DTC P1220 Throttle Position (TP) Sensor 2 Circuit
        DTC P1221 Fuel Pump Secondary Circuit Low
        DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

        What do i do?

        Did you ever try the throttle position sensor? I didn't see in the thread where you did. To me that looks like the most obvious thing to start with.

        Comment


        • #34
          Re: What is wrong with my car?

          Yeah, i had replaced the throttle body with a different one.
          Wait, Is that a V6 or V8?
          1990 Chevrolet C-K 1500 series 4.3L .. 5spd
          1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
          2000 Camaro 3.8L Auto Bolt Ons..etc

          Comment


          • #35
            Re: What is wrong with my car?

            Can you post a list of what you have tried?

            Comment


            • #36
              Re: What is wrong with my car?

              Coil packs which stopped the miss firing but now i have
              DTC P1221 Fuel Pump Secondary Circuit Low
              DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

              and the reduced engine power which i didnt have before and this kind of whistling when foots on the the throttle
              Wait, Is that a V6 or V8?
              1990 Chevrolet C-K 1500 series 4.3L .. 5spd
              1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
              2000 Camaro 3.8L Auto Bolt Ons..etc

              Comment


              • #37
                Re: What is wrong with my car?

                Originally posted by ACiFiC View Post

                and the reduced engine power which i didnt have before and this kind of whistling when foots on the the throttle
                Vacuum leak. Has to be a vacuum leak somewhere. Start checking vacuum lines and around the UIM, LIM, TB gaskets.
                1995 Pontiac Firebird
                2008 Chevrolet Silverado LT Crew Cab 4x4

                Comment


                • #38
                  Re: What is wrong with my car?

                  Originally posted by Mogobs30th View Post
                  Vacuum leak. Has to be a vacuum leak somewhere. Start checking vacuum lines and around the UIM, LIM, TB gaskets.

                  I know this is stupid question but where am i looking for the vacuum line?

                  and just threw a in a new TB gasket with the tb spacer that should be find.
                  Wait, Is that a V6 or V8?
                  1990 Chevrolet C-K 1500 series 4.3L .. 5spd
                  1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
                  2000 Camaro 3.8L Auto Bolt Ons..etc

                  Comment


                  • #39
                    Re: What is wrong with my car?

                    Originally posted by ACiFiC View Post
                    I know this is stupid question but where am i looking for the vacuum line?

                    and just threw a in a new TB gasket with the tb spacer that should be find.
                    they are all over the engine bay just start listening for a hissing sound to find a break or leak. also read up on google or youtube or just about anywhere on how to check for a vacuum leak. any vids of the car running?
                    Dave:
                    00 Supercharged Camaro - RIP
                    97 Turbo Camaro - Sold

                    Comment


                    • #40
                      Re: What is wrong with my car?

                      havent got around to taking a another recent one, i could do that today, but the thing is, you only hear it at certain rpms, so need a second person, will get try to post for today.
                      Wait, Is that a V6 or V8?
                      1990 Chevrolet C-K 1500 series 4.3L .. 5spd
                      1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
                      2000 Camaro 3.8L Auto Bolt Ons..etc

                      Comment


                      • #41
                        Re: What is wrong with my car?

                        Would a vacuum leak cause my reduced engine to go off, it only goes off after i give it 1/4 to 1/2 gas or about 5 minutes
                        Wait, Is that a V6 or V8?
                        1990 Chevrolet C-K 1500 series 4.3L .. 5spd
                        1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
                        2000 Camaro 3.8L Auto Bolt Ons..etc

                        Comment


                        • #42
                          Re: What is wrong with my car?

                          You can also try spraying some starting fluid around different areas of the engine while it is running and listen for the engine speed to pick up a little. This can help you narrow down the area of the leak.

                          Comment


                          • #43
                            Re: What is wrong with my car?

                            Take a look at these two videos.. see what your thoughts are, thanks in advance.

                            http://www.youtube.com/watch?v=yLXKXWJTKE8


                            http://www.youtube.com/watch?v=rRLdsSgGCkw
                            Wait, Is that a V6 or V8?
                            1990 Chevrolet C-K 1500 series 4.3L .. 5spd
                            1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
                            2000 Camaro 3.8L Auto Bolt Ons..etc

                            Comment


                            • #44
                              Re: What is wrong with my car?

                              Definitely a vacuum leak.
                              1995 Pontiac Firebird
                              2008 Chevrolet Silverado LT Crew Cab 4x4

                              Comment


                              • #45
                                Re: What is wrong with my car?

                                would that cause my reduced engine thing?
                                Wait, Is that a V6 or V8?
                                1990 Chevrolet C-K 1500 series 4.3L .. 5spd
                                1994 JDM Euno Roadster 1.8L 5spd Bolt Ons.. etc
                                2000 Camaro 3.8L Auto Bolt Ons..etc

                                Comment

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