Thread: Tuning for a manual transmission

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  1. #1 Tuning for a manual transmission 
    SE Level Member Jeckel's Avatar
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    I have a buddy that recently put a 3800 into his fiero. Using DHP, that tables do I need to change so he can shift above 4K?
    He is using a 2002 pcm and bin file.
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  2. #2 Re: Tuning for a manual transmission 
    GXP Level Member darkhorizon's Avatar
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    if he didnt hook any shift logic up, he should be in "D" all the time according to the PCM.

    For the most part I dont change anything other than DTC codes for manual swaps. The motor runs alot different due to the different gear ratios so I bounce timing up alot, enable really lean cruise, etc.
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  3. #3 Re: Tuning for a manual transmission 
    Florida Tuner Z34Phoenix's Avatar
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    if it wont go above 4k then the pcm thinks the car is in neutral. like DH said adjust so that it thinks its in drive, or adjust the tables so the rev limiter is higher in neutral... but not sure if other tables are adjusted if the car thinks its in N. I suggest adjusting the harness so that the Neutral safety switch is properly connected to the pcm so that it sees if the car is in N or D(a gear)

    96 Z34 (RIP LQ1 14.81@92.3) L36 Swap 14.9@91.5 www.cardomain.com/id/z34phoenix
    Topswap: P&P All,Si Valves,L76's,LW Pushrods,SD's,DHP PT PB 13.91@99.8
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  4. #4 Re: Tuning for a manual transmission 
    GrandPrix Junkie
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    I used TinyTuner to change the trans to manual then adjusted gear ratio and pulse per mile in my GP. Worked like a charm.
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