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Thread: No PE at full throttle...

  1. #1
    Fuel Injected!
    Join Date
    May 2014
    Posts
    129

    No PE at full throttle...

    I noticed last night that at full throttle PE isnt kicking in. Closed loop and 14.7 Desired AFR. I looked in my scalars and I see PE Delay Time is 110 sec.

    I assume that means I wont see PE mode for almost 2 minutes and this should be dropped to 0-1 seconds?
    1995 Chevy C2500 Suburban 5.7 4L80-E, 16197427, BNKM, $31

    Hooker Long Tubes headers, dual 2.25" exhuast, mufflers. TBI mods, Moates APU1, TunerProRT, CAI, 4 core radiator

  2. #2
    Fuel Injected!
    Join Date
    May 2014
    Posts
    129
    just found http://www.gearhead-efi.com/Fuel-Inj...PE-not-working

    will be making adjustments accordingly and report back later
    1995 Chevy C2500 Suburban 5.7 4L80-E, 16197427, BNKM, $31

    Hooker Long Tubes headers, dual 2.25" exhuast, mufflers. TBI mods, Moates APU1, TunerProRT, CAI, 4 core radiator

  3. #3
    Fuel Injected! JeepsAndGuns's Avatar
    Join Date
    Sep 2011
    Location
    alabama
    Age
    41
    Posts
    1,702
    Yep, I remember that. It was back when I was still learning.
    Set your PE delay to 0 and it should come on instantly now. You can also change at what throttle percent you want it to come on. I have mine set at 50%. So anytime I push the throttle past 50%, it goes into PE.
    I have never tried it, but I would think it could be changed to whatever you want. Say like 75% or 90% if you wanted.
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

    93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver

    99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.

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