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Thread: turbo coyote throttle not closing (scary AF)

  1. #1
    Tuner in Training
    Join Date
    Oct 2009
    Posts
    47

    turbo coyote throttle not closing (scary AF)

    After a event this weekend i made some changes in my tune to alleviate a limiter on the transbrake. After the changes I noticed the car wanting to accelerate on its own. So I tested going full throttle and it actually kept the throttle open for seconds after the accel pedal was let off. I had to tap the brakes to get it to stop. The only changes were turning off 2 misfire codes (first 1000 rev and random) and raising the reverse rev limits in trans general to 4500. I flashed back to my previous tune and the problem seems to have gone away.

    Has anyone ever seen this before because this is a first for me.
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  2. #2
    Advanced Tuner
    Join Date
    Feb 2019
    Location
    Texas
    Posts
    304
    There should be an inferred movement tab as well. I think it?s set to something like 3000 from the factory. I don?t have too much experience in transbrake setup but it makes sense to me if the pcm is inferring movement it would keep the throttle open. Either that or some how some way the tune that was flashed had a different decel decay.