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  • Bad Idle...Pleae Help!

    When my car is idling, the rpm's bounce between 500 and 1300. If I let it sit long enough, it just dies. If I rev it, it is fine. It just started doing this the other night and I have no idea why. I removed my MAF screen, but I dont think that has anything to do with it. It hasnt thrown any new codes yet either (still shows the P134, buts thats old news).

    I also noticed extra carbon build up in my exhaust tips. This means its running rich.

    Is is running way too rich and bogging itself down?
    sigpic
    1997 Camaro RS A4
    2006 Chevy Colorado
    2003 Kawasaki Ninja ZX6-R

  • #2
    Re: Bad Idle...Pleae Help!

    Originally posted by Shodown
    Is is running way too rich and bogging itself down?
    That could be possible, check your o2 sensors. Pull you spark plugs and take a look at them see what they look like that can help alot. You might have any series of problems, and without an engine code its a bit harder to narrow down. It could be something as stupid as a o2, map, throtle postion, crank position sensors. Too much comes into play with running rich, I don't know however exactly what can cause the engine to rev itself, unless the computer is trying to do it to compensate.

    Edit~ Just saw the Nitro system, how are your rings and gaskets holding up? I know compression loss can cause some issues like that also, as far and dieing and running sparatic
    Last edited by Nikos95; 05-31-2006, 04:01 PM.
    1995 Camaro 3.4 A4<br /><br />CAI,IAT Relocate

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    • #3
      Re: Bad Idle...Pleae Help!

      The only pending code is P134 and the scanner said it was "02 Sensor no acitvity detected Bank 1 Sensor 1". What O2 sensor is that?

      Plugs are brand new (TR6), only 200 miles on them, new wires too.

      I havent run the nitrous yet, its not even wired up. The rings and gaskets should be fine, car only has 69,200 miles on it.
      Last edited by Shodown; 05-31-2006, 04:56 PM.
      sigpic
      1997 Camaro RS A4
      2006 Chevy Colorado
      2003 Kawasaki Ninja ZX6-R

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      • #4
        Re: Bad Idle...Pleae Help!

        your o2 sensor probably is dad. put maf screen back

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        • #5
          Re: Bad Idle...Pleae Help!

          Originally posted by iGoRa
          your o2 sensor probably is dad. put maf screen back
          Why put the maf screen back? I am installing a dry nitrous system. If the maf screen is there it will get clogged with ice from the nitrous.
          sigpic
          1997 Camaro RS A4
          2006 Chevy Colorado
          2003 Kawasaki Ninja ZX6-R

          Comment


          • #6
            Re: Bad Idle...Pleae Help!

            well , if you have the reason than leave it out.
            Conditions for Setting the P0134:
            The system voltage is greater than 9 volts.
            The engine run time is greater than 70 seconds.
            The fuel system is operating in Closed Loop.
            The AIR and the Catalyst diagnostics are not active.
            The engine coolant temperature is greater than 48°C (118°F).
            The HO2S signal voltage is between 350 mV and 550 mV for 57 seconds.

            Comment


            • #7
              Re: Bad Idle...Pleae Help!

              Originally posted by iGoRa
              well , if you have the reason than leave it out.
              Conditions for Setting the P0134:
              The system voltage is greater than 9 volts.
              The engine run time is greater than 70 seconds.
              The fuel system is operating in Closed Loop.
              The AIR and the Catalyst diagnostics are not active.
              The engine coolant temperature is greater than 48°C (118°F).
              The HO2S signal voltage is between 350 mV and 550 mV for 57 seconds.
              Wow, could be alot of things. Thanks for looking that up, I really appreciate it.

              I am taking it to a mechanic on Friday to have them take a look. I will have them look over EVERYTHING under the hood and make sure everything is in good shape to run the nitrous too.
              sigpic
              1997 Camaro RS A4
              2006 Chevy Colorado
              2003 Kawasaki Ninja ZX6-R

              Comment


              • #8
                Re: Bad Idle...Pleae Help!

                put your maf screen back in and everything will run fine again. Our angle tb's need that screen in there to idle and run correctly. I installed a dry setup on a buddy of mines 97 camaro and left the screen in. Everything works fine.
                http://www.bowtiev6.com/

                Comment


                • #9
                  Re: Bad Idle...Pleae Help!

                  Originally posted by 97rs4life
                  put your maf screen back in and everything will run fine again. Our angle tb's need that screen in there to idle and run correctly. I installed a dry setup on a buddy of mines 97 camaro and left the screen in. Everything works fine.
                  I kept the screen. I'll put back in first thing tomorrow. I was reading somewhere that people were having problems with icing and dry n2o systems. I never thought it would mess up the idle, course I forgot about the angled TB too.

                  Thanks guys. :)
                  sigpic
                  1997 Camaro RS A4
                  2006 Chevy Colorado
                  2003 Kawasaki Ninja ZX6-R

                  Comment


                  • #10
                    Re: Bad Idle...Pleae Help!

                    Whats with the screen back in stuff??? I have cut the screen out of almost every single MAF sensor I have ever had in any car I started to build. The screen is only really there as a last second block for any crap that may get past your air filter so the $300 sensor doesn't get destroyed. You shouldn't have any problem if you remove it, as long as you don't ruin the sensor in the meantime.

                    I have pulled from out of every single 3rd gen I have worked on and thats nearing 30 of them, and mine, never seen an issue by it. Unless there can be a slight issue because of the way the air hits it and slows and turns or what ever the case may be.
                    1995 Camaro 3.4 A4<br /><br />CAI,IAT Relocate

                    Comment


                    • #11
                      Re: Bad Idle...Pleae Help!

                      Originally posted by Nikos95
                      Whats with the screen back in stuff??? I have cut the screen out of almost every single MAF sensor I have ever had in any car I started to build. The screen is only really there as a last second block for any crap that may get past your air filter so the $300 sensor doesn't get destroyed. You shouldn't have any problem if you remove it, as long as you don't ruin the sensor in the meantime.

                      I have pulled from out of every single 3rd gen I have worked on and thats nearing 30 of them, and mine, never seen an issue by it. Unless there can be a slight issue because of the way the air hits it and slows and turns or what ever the case may be.
                      The maf screen isnt there to block anything, its there to smoothen the airflow over the maf sensor.

                      My 97 especially needs the maf screen cuz it has an angled TB which your 3rd gens dont have so they have less of a problem with it.

                      I was reading the "nitrous Bible" and it says that a rough idle could be due to a leaking vacuum so I will check that as well as reinstall the maf screen.
                      sigpic
                      1997 Camaro RS A4
                      2006 Chevy Colorado
                      2003 Kawasaki Ninja ZX6-R

                      Comment


                      • #12
                        Re: Bad Idle...Pleae Help!

                        Well I put the maf screen back in, checked all my vacuum lines and it idles fine now.

                        Thanks for everyone's help! :)
                        sigpic
                        1997 Camaro RS A4
                        2006 Chevy Colorado
                        2003 Kawasaki Ninja ZX6-R

                        Comment


                        • #13
                          Re: Bad Idle...Pleae Help!

                          who called it...that would be me....yahoo!

                          good to hear it is all working good again. Our angle tb's don't like the !MAF screen mod at all.
                          http://www.bowtiev6.com/

                          Comment


                          • #14
                            Re: Bad Idle...Pleae Help!

                            how did you take off the MAF screen originally? sorry to add to this thread, but ive never figured out how to take the damned thing off.

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                            • #15
                              Re: Bad Idle...Pleae Help!

                              there is a metal ring that holds the screen in. Find the 2 little holes in the ring and pull them together and pull the ring out.
                              http://www.bowtiev6.com/

                              Comment

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