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Type: Posts; User: Don GTP

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  1. Proper way to change PCM for gear ratio change also no cruise control

    I have a rebuilt transmission in my 99 Pontiac Grand Prix GTP, it has all hard parts along with the GM 1" chain (3.52 ratio) it is an odd ratio but I have it, also I have a 3000 ATI stall Torque...
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    Surging idle when cold

    I have a 99 Grand Prix GTP with IS3 Cam/Heads, Northstar TB, 60/65 lb injectors, SLP headers, & other supporting mods, no IC yet though, also I removed the EGR completely.

    Ever since I installed...
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    I do not have cruise control with SRC

    I have a 1999 Pontiac Grand Prix GTP

    I have a fully built transmission from INTENSE & I use a Speedometer Recalibration Controller (SRC) & custom reluctor wheel to compensate for the gearing.

    I...
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