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Thread: E38 / E67 VATS disable guide

  1. #21
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    Quote Originally Posted by GMPX View Post
    So from that I assume you've only been told it can be done but as yet the theory isn't proven?
    I know it can be done as I have used two different segments from one OS and one starts without needing the starter relay and one needs it. Just need to narrow down exactly where it is.

  2. #22
    Lifetime Member GMPX's Avatar
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    ah ok, thanks.
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #23
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    I have some questions. I and working with a 08 5.3 truck motor in a 59 Vette with E38 ECM
    OS #12617631 Now it will start but then die.
    I have done the patch on VATS Type 2
    How do i go about wiring in the Crank Relay Current. Thats what i don't understand.

    (VATS patch + VATS Type 2 + Crank Relay current ?? )

  4. #24
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    Hello hotrod,

    Given that the engine starts currently (but won’t stay running), try using the following settings:

    G1204 – Yes
    G1205 – Yes
    G1206 – No
    G1208 – Disabled
    G1209 – No
    G1210 – Type 2
    G1211 – Yes
    G1213 – Yes
    G1214 – 3
    G1215 – 600
    G1216 – Yes
    G1217 – 15.00
    G1219 – Disabled
    G1220 – Not used


    Regards,
    Taz

  5. #25
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    Trying it now. . .

    Thanks you, i'll post back with results.

  6. #26
    Lifetime Member GMPX's Avatar
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    As Taz mentioned above, we released a cal update to fix the starter relay issue. Just change G1220 to "Not Used". This seemed to only be causing issues on 2008+ OS's
    I no longer monitor the forum, please either post your question or create a support ticket.

  7. #27
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    Did everything above, still wont stay running. It will fire run for 2 seconds or so then die. Still sounds like the VATS is on to me. I dont get it.
    Attached is the current tune i have in it.

    Let me know if i have something wrong..
    Attached Files Attached Files

  8. #28
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    The VATS patch requires a “full flash” of the ECM. After that, you can use “calibration only” flashes for tuning changes.

    Check your parameters again, and try a full flash. Will take a look at your tune shortly …


    Regards,
    Taz

  9. #29
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    I did do a full reflash. Umm... It says i have applied it.

    I suppose i could try to do another full flash tonight. See what happens.

  10. #30
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    Hello Hotrod,

    Try the full flash again. Tune looks OK … if the full flash doesn’t resolve the issue … this should not make any difference with an automatic transmission, but try setting:

    G1213 to “No” (clutch depress to crank)

    Gen III guy – not a Gen IV expert. A lot of what little Gen IV VATS knowledge I have, comes from reading Ian’s (gmh308) posts.


    Regards,
    Taz

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