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Thread: I need help with Mustang 3,7 2014 year 305 ps

  1. #1
    Potential Tuner
    Join Date
    Jun 2018
    Posts
    9

    I need help with Mustang 3,7 2014 year 305 ps

    HI, i have a problem with lambda, in high rpm i see 0.75, i don't khnow why, i haven't retard . Anyone can help me correct my file.I upload orginal file, mod and logs.
    Car is full stock, we change only Rear Mufler and car have fuel PB98

    mustang3.7_305ps_mod4.hptmustang3.7_mod4.hplmustang3.7_305ps.hpt

  2. #2
    Tuner in Training
    Join Date
    Mar 2019
    Location
    Tierra Verde, FL
    Posts
    30
    Take a look at your cat protection temps. Log fuel source and watch where it goes into cat protection then look at your cat temps in the channels. When pcm goes into cat protection its adding more fuel to protect cats. Whats your WOT lambda set at in the tune, don't have laptop to look.

  3. #3
    Potential Tuner
    Join Date
    Jun 2018
    Posts
    9
    Cat temperature i logs max in 6900 rpm 923 degree, i up limiter in ecu to 979 degree.i think this si not this problem. I logs too Short trim and it is good,

    I logs too 219 g/s maf 6700-7000 rpm and i check linearization maf, Linearization is 219 g/s is max.