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2000-2200 rpm studder

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  • 2000-2200 rpm studder

    I've been having this issue with my car since last summer and I just got the z back together and I'm still having a studder problem around 2000-2200 rpm if I hold it at that rpm for more then 1min. what really makes me mad is that this is my low speed crusing rpm so drving around town is jerky. anyone have any ideas what this could be?





    tbs
    Blue & Silver 81 zxt, 88 ECCS
    Z32 mas,450cc injectors
    ported exhaust manifold, cable throttle linkage
    t3/t4e 12psi , 3inch exhaust, K&N,
    ACT clutch, 240sx t/b, 1G DSM BOV
    Custom Intake FINISHED
    Ported and Polished N42
    Tan 88-89 conquest seats
    Sperco IC 18.5x6x3.5
    2.5 IC pipes
    Suspension work!!
    Nistune
    Zeitronix Wideband
    240sx transmission
    Soon:
    95 Maxima Alternator

  • #2
    does it do it at any other rpm? does it change behaviour when the engine is hot or cold? did you check your egr and egr solenoid? tried another known good afm?

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    • #3
      I don't have and egr valve or solenoid any more. I'll check on the rest to night and get a data log of the mas voltage and afrs when its doing it.




      tbs
      Blue & Silver 81 zxt, 88 ECCS
      Z32 mas,450cc injectors
      ported exhaust manifold, cable throttle linkage
      t3/t4e 12psi , 3inch exhaust, K&N,
      ACT clutch, 240sx t/b, 1G DSM BOV
      Custom Intake FINISHED
      Ported and Polished N42
      Tan 88-89 conquest seats
      Sperco IC 18.5x6x3.5
      2.5 IC pipes
      Suspension work!!
      Nistune
      Zeitronix Wideband
      240sx transmission
      Soon:
      95 Maxima Alternator

      Comment

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