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Thread: FOR BEGINERS ....PAY ATTENTION WHEN TUNING THE AFR,LAMBDA etc

  1. #1
    Junior Member
    Join Date
    Dec 2009
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    27

    Default FOR BEGINERS ....PAY ATTENTION WHEN TUNING THE AFR,LAMBDA etc

    i am learning to work with EFIlive...so i make mistakes...
    but one of this mistakes could cost your engine . let's say my luck was that i have a BIG RED AFR GAUGE on the dash and i could saw the AFR going extreme lean when step on the gas...
    the story: i was working on the autoVE.tun at calibration b3605 for safety i should increase the petrol amount in the last 4 columns (85,90,95,100). but because my table was in lambda and not afr (i'm not used with lambda) ...i was increasing the value with 20% all those columns ! BIG MISTAKE !!! THAT WAS BASICALLY INCREASING THE VALUES WITH 20% WHICH IN RESULT IS DECREASING THE PETROL AMOUNT WITH 20% !!!...

    so for everybody which are tuning with afr,lambda tables please double check the result when modiffing something ...when increasing values means decreasing amount of petrol....

    BIG STUPID UNFORGETABLE GREAT REGRETABLE POSSIBLE MISTAKE

  2. #2
    EFILive Crew Site Admin Tordne's Avatar
    Join Date
    Oct 2004
    Posts
    3,870

    Default

    This is a very important thing for people to recognize!

    EQ Units and Lambda are effectively opposed. For example assuming stoich of 14.63:1 AFR an EQ of 1.10 is 13.3:1, were as the same AFR in Lambda is 0.90.
    Andrew
    EFILive Crew


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