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  • #1

    LT1 issues

    I took my car out after work today to go get a snack.

    As I pulled into the parking spot, the rpms dropped and it stalled, still in D.

    I go out to get back in, fires right up, more rpm at idle then usualy, about 1000-1100. It should be close to 850.


    I get home, plug my snap on scan tool in, the IAC counts at idle in park were 0, put it in gear, jumped to 55-60.


    Any ideas?
    sigpic

    1996 Base Model
    +2 cylinder mod
    Tags: 000, 100, 1000, 1100, back, car, close, dropped, gear, home, ideas, idle, issue, issues, lt1, parking, plug, pulled, put, rpms, scan, spot, today, tool, work
  • #2
    adjust the TB blade so that you get the IAC counts between 30 and 40, and make sure the TPS voltage is within spec.

    TPI throttle bodies have a tendency to wear the shaft bushing which creates a vacuum leak, not sure if this is common with the LT1 TB's.

    1998 Camaro Z28 - Bright Red, 6.0 TR224, 4l60e, 3.42 Eaton TrueTrac
    1989 Camaro IROC-Z Convertible - 355 big tube TPI, WC T5, 3.42 Zexel Torsen, CTS-V/C4 brakes
    1955 Bel Air 2 Door Post - 357 TPI, Muncie M20, 4 wheel disc

    2006 Saab 9-7x 5.3i Daily Driver

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    • #3
      This can be closed.


      I found a pretty nasty vacuum leak, one of my rubber connectors had a slice in it.


      Using some starting fluid found it easily.



      Thanks for the help.

      I adjusted my throttle body to where most people say to .67 v
      sigpic

      1996 Base Model
      +2 cylinder mod

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