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Thread: E90 ecu 4,000 P/N cutoff

  1. #1
    Tuner in Training
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    E90 ecu 4,000 P/N cutoff

    hello how is everyone i have 2020 sierra 5.3 with global a ecu i am trying to tune the cutoff on P/N to reach 6,000 rpm but what is happeing is after i edit my cutoff and test the car on manual shifting it reaches 6,000rpm and start bouncing off the revlimiter fast but when in P or N it will only reach 4,000 and stay there not like 2017 gmc what is does on manual shifting is the same on p/n what tables need to be edited please

  2. #2
    Tuner in Training racetronik's Avatar
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    I have tried all I can. But the throttle seems to close when going WOT in Park Neutral. I wish I had a test vehicle to try. I don't want to try on a client's vehicle. LOL

  3. #3
    Tuner in Training racetronik's Avatar
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    One more thing. If you find it please share, willing to pay USD 100. I love bouncing rev limiter.

  4. #4
    IMG_6026.png

    Aboturky, I just emailed your file back

  5. #5
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    still no luck the same problem

  6. #6
    Check out driver demand at 0 mph and see if it looks weird.

  7. #7
    Tuner in Training
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    let me check that

  8. #8
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    it looks weird but i already test the car lets say at 30mph put it in neutral and rev the engine still it will reach 4,000rpm then starts to climb up slowly as of torque is being reduced

  9. #9
    Tuner in Training racetronik's Avatar
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    In Park/Neutral when you rev the throttle is stuck at 35%. There is a slight jump like to about 60% and then it comes back to 30-35% even if the pedal is 100%
    I still didn't find where is that throttle limit which is only for park/neutral only.

  10. #10
    Tuner in Training racetronik's Avatar
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    Quote Originally Posted by MeanMike View Post
    Check out driver demand at 0 mph and see if it looks weird.
    In case a vehicle comes by, what parameters do you want logged ?

  11. #11
    Potential Tuner
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    Anyone figured this out yet?

  12. #12
    Advanced Tuner
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    No tune, No log = No help
    2009.5 PBM G8 GXP M6 W/Roof-Self tune, OBX LTs, Kooks axleback, LSA blower, cam,
    Monster LT1-SC clutch, flex fuel, 12 psi [email protected] 1,800 D.A
    2007 TBSS-Self tune, bolt ons [email protected], 1,900 D.A
    1991 GMC Syclone- Self tune/catback 12.8@104, 4,200ft D.A

  13. #13
    Tuner in Training
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    conatct me its done 👍🏼
    [email protected]
    +966569285656 whatsapp

  14. #14
    Senior Tuner 04silverado6.0's Avatar
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    Still have this issue with the p10 pcm.