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  • #1

    Optispark help

    I started to get a misfire above 4500 rpm, so I decided to replace my optispark. I had the non vented style. I replaced it with the Dynaspark vented style Gen1 opti. Now I have a slight misfire and hesitation. I have no check engine codes. Could the venting be effecting how it's running? Any help would be appreciated!
    sigpic

    355 LT1 M6. 232/240 LE cam. 21* Trick Flow heads. Fully ported intake. 58mm TPIS tb. 42# SVO Injectors. LS7 Lifters. Moser 9" TrueTrac w/ 4.22 gears. True Duals. UMI Suspension. LS1 brake swap. Dr. Phil tuned 400ish rwhp. Money Pit.
    Tags: 450, 4500, 500, appreciated, check, codes, decided, engine, gen, ing, ion, issues, misfire, optispark, replace, replaced, rpm, run, running, slight, star, started, style, vented, venting
  • #2
    Was the dowel pin the same style as your opti? Did you have to force it on?

    Hiss the MAF? Mine was causing me hesitation and issues.
    1998 Chevrolet Camaro Z28 - 6 Speed

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    • #3
      Originally posted by nascarnate326 View Post
      Was the dowel pin the same style as your opti? Did you have to force it on?

      Hiss the MAF? Mine was causing me hesitation and issues.
      It was the same style with the flat spot. It went on easy and flush. I took it off and put it back on just twice just to make sure. I wondered about the MAF, I ran it unpluged to see if it made a difference and it seemed to run smoother, but I didn't know what that meant I needed to do.
      sigpic

      355 LT1 M6. 232/240 LE cam. 21* Trick Flow heads. Fully ported intake. 58mm TPIS tb. 42# SVO Injectors. LS7 Lifters. Moser 9" TrueTrac w/ 4.22 gears. True Duals. UMI Suspension. LS1 brake swap. Dr. Phil tuned 400ish rwhp. Money Pit.

      Comment

      • #4
        You may want to buy a 7 dollar bottle of MAF cleaner and try that.

        On my car, when I unpluged the MAF it made no difference. Since yours changes, I think it would be "good"
        1998 Chevrolet Camaro Z28 - 6 Speed

        Comment

        • #5
          Originally posted by nascarnate326 View Post
          You may want to buy a 7 dollar bottle of MAF cleaner and try that.

          On my car, when I unpluged the MAF it made no difference. Since yours changes, I think it would be "good"
          I have the Granatelli MAF with no screen. I am stumped with this one. I actually drove the car with the MAF unplugged and it's not better, but it does idle better.
          Last edited by ryanwarby01; July 3rd, 2011, 12:34 AM.
          sigpic

          355 LT1 M6. 232/240 LE cam. 21* Trick Flow heads. Fully ported intake. 58mm TPIS tb. 42# SVO Injectors. LS7 Lifters. Moser 9" TrueTrac w/ 4.22 gears. True Duals. UMI Suspension. LS1 brake swap. Dr. Phil tuned 400ish rwhp. Money Pit.

          Comment

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