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  • no miss under load

    2000 sw2 p0301
    its got 75 psi in cylinder one
    i guessed after that it has a cracked valve or sumthin
    but it only misses at idle and not under load if youre driving you dont even notice it
    wanna know what yuse thinks
    sigpic-VOLVO 745T 175K MBC ...
    - 9 BOLT Aluminum Intake 3rd gen sedan... Beige... 160K

    You're so crazy! enough in a way that i'll probably say you destroyed me!
    ~The Used

  • #2
    are you sure it's a mis-fire? it could be an exhaust leak.
    is SES (saturn tunerz) light on? If not, then check for an exhaust leak....
    if so, do a complete tune-up... plugs wires coils and icm.

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    • #3
      yea gotta be a leak somwhere for it to be showing only 75lbs.....any cracks in the intake or exhaust manifolds?? is the injector snug in its home, are the clips on the injector??
      Fucking Pringle bastards.

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      • #4
        right. because 75lbs is low for cylinder pressure. It should be between 120-160 at all times.

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        • #5
          Serivce limit is 185-180.....THAT'S THE LOWEST IT SHOULD BE
          -6S Resident Mechanical Forensics member #001.
          1995 SC2 Turbo 3.6L DOHC, 6sp manual, Ford 8.8 rearend running on MS3x.
          1998 F-250 5.4L triton...stock.

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          • #6
            That is highest compression (psi) allowed isn't it?

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            • #7
              no I think highest for stock is 205 or 210
              -Vinny

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              • #8
                same situation with my brothers 3.4. idles bad and misses on low rpms. get moving a bit and its gone. i would bet head gasket. possibly stuck compression ring

                check inside your valve cover for foam after it runs. you may have to pull the valve cover off as that metal shield might not let it get up there.
                Ian---The Fat Ass

                1995 SL2-High compression engine FOR SALE
                2010 Chevy Cobalt SS- tuned with plenty of goodness
                2002 SC2-New daily
                2017 Kawasaki Ninja 650 KRT- got a stupid deal
                2003 Ford Taurus SES- free daily beater

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                • #9
                  i need to bring it back to the shop and parkit
                  check the cylinder next door and then pull the cams and pressurize the low cylinders to confirm whats bad and ill post back
                  sigpic-VOLVO 745T 175K MBC ...
                  - 9 BOLT Aluminum Intake 3rd gen sedan... Beige... 160K

                  You're so crazy! enough in a way that i'll probably say you destroyed me!
                  ~The Used

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