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Thread: LSJ 80 Lb Injector Twin Charge Idle Issues

  1. #1
    Potential Tuner
    Join Date
    Feb 2012
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    2

    LSJ 80 Lb Injector Twin Charge Idle Issues

    This is my first time tuning an LSJ so I am looking for a little help.

    I am working on a LSJ Twin Charge setup with 80 lb fuel injectors. I used Omega's spreadsheet for the 80 lb injectors, and after initially putting the tune in I found the car is running at 10.7 AFR under PE. However, my idle is at a 10.1 AFR. Any help getting the idle dialed in would be appreciated. This is also a returnless system. I have attached the current tune, and two data logs. Thanks in advance.

  2. #2
    Advanced Tuner
    Join Date
    Feb 2009
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    418
    You have your wideband hooked to HPT? Did you MAF/VE tune after you did the injector tune change?

    Sorry I dont have my laptop to look.

  3. #3
    Potential Tuner
    Join Date
    Feb 2012
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    I do not have a wideband hooked to HPT. I was using the wideband in the car. I will have to recalculate the MAF/VE. This was a first time start up with the injector recalibration from the spreadsheet.

  4. #4
    Advanced Tuner laser_racer's Avatar
    Join Date
    Jul 2009
    Location
    league city tx
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    461
    Bet its short pulse adder and min. pulse limit. Your short pulse adder table needs to be zeroed out and the min limit needs to be .102