I AM TOTALLY STUMPED!!! EVEN WORSE NOW.. 3 weeks later. - FirebirdV6.com/CamaroV6.com Message Board

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I AM TOTALLY STUMPED!!! EVEN WORSE NOW.. 3 weeks later.

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  • #1

    I AM TOTALLY STUMPED!!! EVEN WORSE NOW.. 3 weeks later.

    ok so i changed plugs, wires, coils, and now injectors..


    when the car is cold..it runs suprisingly smooth until i reallly hit the gas hard.. then it stutters.


    when its warm, WHENEVER its under ANY load, it misfires pretty bad..

    but when i keep it steady... lets say at 45mph in 4th gear (5spd), there is NO misfire or any hesitation...

    wtf is wrong with my car!!

    if i take it to the dealership, can they find out exactly whats wrong with my car with their scanner? they said they'll only charge me 50 opposed to 80 for it... will this scan be worth it? could bad o2 sensors really cause misfires that bad?

    [ September 02, 2003: Message edited by: Tyler ]

    [ September 21, 2003: Message edited by: Tyler ]</p>
    96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>
    Tags: None
  • #2
    You don't have an SES light on??
    1997 Chevrolet Camaro v6 - 13.8@104MPH
    1997 Dodge Viper GTS

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    • #3
      i reset the PCM... light came back on after heavy driving.. flashing. . which is usually continuous misfires.....
      96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

      Comment

      • #4
        You did injectors, but have you checked fuel pressure??? It sounds like an ingnition prob. to me, but lets cover spark and fuel anyways.

        Is it ever hard to start?

        [ August 28, 2003: Message edited by: AZ3.8Camaro ]</p>
        1997 Chevrolet Camaro v6 - 13.8@104MPH
        1997 Dodge Viper GTS

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        • #5
          is there a way to check fuel pressure without getting a fuel pressure guage? i dont have the money to dish out for a fuel psi guage.
          96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

          Comment

          • #6
            You can get a generic pressure gauge from like sears (tool section) make sure it goes to like 100 psi.... then get the stuff to adapt it to the shrader valve on the fuel rail. It was only like $15...
            1997 Chevrolet Camaro v6 - 13.8@104MPH
            1997 Dodge Viper GTS

            Comment

            • #7
              will it be permanent if i put one on? or can i put it on..check the pressure and then take it off?
              96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

              Comment

              • #8
                take it off
                1997 Chevrolet Camaro v6 - 13.8@104MPH
                1997 Dodge Viper GTS

                Comment

                • #9
                  ok.. im gonna get one then...


                  what should optimum fuel pressure be at WOT?
                  96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

                  Comment

                  • #10
                    Hmm... the topic is VERY vauge... and the contect is also very basic.. so I'm moving this to general help.
                    Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

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                    • #11
                      i put it in advanced tech because more experienced people post replies in there..

                      anyways.. this is a misfire problem that hasnt been solved yet..

                      anyone else got any ideas?


                      im thinking about just taking the damn thing to the dealership and having them do it all
                      96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

                      Comment

                      • #12
                        ttt
                        96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

                        Comment

                        • #13
                          Wow dude this sucks... as you know I have the same problem, but I'm just going to install wires tomorow and see if it helps... it could be so many things it's not even funny... bad fuel, fuel pump, fuel filter, clogged fuel lines, injectors, bad ignition module, bad central computer, bad ignition module, bad distributor, bad coils, wires, plugs, bad or clogged cat converter, some bad sensor.... heh.... sure a lot of things. I think it would be wise investment to go to the dealer, pay once and let them pinpoint the problem, since they have all required tools for that.

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                          • #14
                            :mad:
                            96 Camaro M5. Dark metallic gree (?dont know the offical color name)<br />Home made Intake :: Headers, 3inch headers back to Flowmaster muffler :: spec stage 3 clutch Now installed, waiting for 3.42\'s and LSD next month<br /><a href=\"http://photobucket.com/albums/y192/RiceEatingCamaro/?action=view&current=newcar.jpg\" target=\"_blank\">My Car</a> <br /><br />Totalled Car.<br /><a href=\"http://bellsouthpwp.net/s/k/sk8er305/\" target=\"_blank\">96 CamaroRS</a>

                            Comment

                            • #15
                              hmmmm

                              I would look at the O2 sensers, TB senser, fuel pump and fuel filter. Any one of those could be the problem. I would not take it to the dealer now. You have already spent a lot of money and you would spend more money at the dealer then you would to just to find the problem.

                              if you have a good friend try his o2 sensers before you buy them. You might also check the junk yard. Try this second.

                              You can clean the TB with a spray can for $5. Try this first.

                              Check the fuel presure. If its low, replace the filter. If its still low, replace the pump. try this one last.

                              Thats what I would try anyway.
                              White 98 Camaro with t-tops leather and Y87. For more info on mods just ask.<br />1/4=14.9<br />2002 Xterra V6 A4

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