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Thread: E92 help

  1. #1
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    Default E92 help

    Hi I'm new to the gas tuning side of efi live. I use efi live to tune diesels. My dad just got a 15 chevy 1500 and I would like to tune it for him. Any help suggesetions ideas would be great and appreiceated. Thanks in advance.



    Cliff

  2. #2
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    The E92 is a whole new can of worms in tuning from previous LS engines
    Short version---- The key tables on an E92 is the Torque Response tables
    Simply on an E92 all you have to do is "ASK " the ECM to make more HP/TQ and it will self adjust both timing and fueling on it's own-
    There are 3 TQ response tables--make them all equal--
    From about 74% TPS on-- input like 400 KW into the tables---(this is about 525 HP)
    Then from about 30% TPS until the 74% ADD about 33% to the entire rest of the table from 0 MPH til the end
    Realize this table is scaled by MPH and Throttle position----
    Keep adding some % from 30% on up to 74 %--If you add too much the shifts will become too crazy firm
    The rest of the tuning on an E92 is still the same as a LS engine
    Desensitize the IAT tables and the ECT tables in the spark section
    Leave the STOCK timing tables alone--simply copy and paste the HI Oct table into the LOW Oct table
    Leave the "final minimum timing tables" stock

    In the fuel section set the PE ramp in fuel rate to 1.98 and the ramp out to 1.25
    Eliminate the PE mode delay system

  3. #3
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    Awesome thanks

    Cliff

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    Let me know how these simple changes work-----There are other more complicated changes that can be massaged but most do not add much in acceleration ---Is your car an Auto trans or a Manual trans ?

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    It’s in my dads 15 Silverado 4x4 and it’s auto

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    How do ya desensitize the iat and ect table?


    Cliff

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    Sorry for the newbie questions, but,
    -when you say make all them all equal do you mean literally from 74%-100% and down from 0-180 all the same?
    I just made changes(added 30% to the highest # in each column and copied that to the entire column) to each column
    -what do you mean by desensitize?
    Do you have an example of a tune? Maybe a stock and modified file?

    Anything else you'd recommend?

    Thanks!
    Mike

  8. #8
    Joe (Moderator) joecar's Avatar
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    Post a log file showing the pids MAP, MAF, RPM, ETCTP, IAT, ECT, LONGFT1/2, LAMBDA (these are all SAE.xxxx pids) and KR, SPARKADV (these are GM.xxxx pids).

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    Quote Originally Posted by joecar View Post
    Post a log file showing the pids MAP, MAF, RPM, ETCTP, IAT, ECT, LONGFT1/2, LAMBDA (these are all SAE.xxxx pids) and KR, SPARKADV (these are GM.xxxx pids).

    Will do today, thanks Joe����

  10. #10
    Joe (Moderator) joecar's Avatar
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    Also log BARO...

    we'll need it to calculate MAP:BARO ratio used for looking up some tables.

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