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  • Figuring out the misfire

    Ok, car hesitates under load... it revs ok in neutral, if I accelerate normally (not granny style) car starts to sputter... SES light came on, got it checked - cylinder 5 misfire. Ok, now I pulled the plug, it looks fine, wire looks fine... so the question is, how can I test wire and the plug if they are in working condition or not? Cuz I don't feel like shelling out 30 bucks for a set of wires when it might be the coilpack or ignition module that aren't working...

  • #2
    damn.. i was in your position..

    changed plugs, wires, coilpacks.. turned out it was the damn injector..


    good luck..


    just swap cylinder 5 and cylinder 3 wires around.. see if the misfire moves to cylinder 3..
    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>

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    • #3
      Testing SES is a problem cuz I have to drive 10 miles to the nearest autozone through city traffic... this puts a lot of strain on choking engine...

      Considering I'm saving big bux on labor I might as well just put a set of new wires, instead of damaging and causing unnesecary wear on the engine. 30 bucks is always cheaper than an engine rebuild [img]smile.gif[/img] If that doesn't work, replace plugs. How hard is it to pull the fuel injector out? I've never pulled injectors out before, so I have no clue on how to do it.

      Also, SES light is flashing if I'm at full throttle redlining 2-nd gear... when it's sputtering under normal acceleration it doesn't flash... I was thinking maybe it would be cheaper to diagnose the problem at the dealer rather than replacing wires, plugs, coils and then find out it's not the problem...

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      • #4
        I've been having the same problem for several months now. I've replaced the wires, plugs, and coil pack. Yet, I still have the same misfire on #3. Mine hesitates when trying to pull out into traffic.

        I think the only thing left is the injector.
        White 1997 Pontiac Firebird 3.8L V6<br />W68 Apperance Package<br />SLP Strut-Tower Brace<br />V8 Bilsten Shocks

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        • #5
          ooooh boy! injectors were a pain in the arse!!!


          it was fun thinking of a way to get that fuel rail off.. slowly..but surely. took me about.. 3 and a half SOLD hours of non stop workig on them
          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>

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          • #6
            Did you have to remove the coilpack module, or whatever it is? Cuz I just checked.. it seems impossible without removing it.. is it even removable? Just ordered set of Xact wires (the cheapest ones at advance auto parts)... I hope it's just the wires...

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