Thread: can a PCM hurt?

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  1. #1 can a PCM hurt? 
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    eventually im going to get headers and 3.6 pully, but will it hurt to run the DHP pcm with stock pully
    04 Grand Prix GTP (Wizaired, 3 inch downpipe)
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  2. #2 Re: can a PCM hurt? 
    DUI BABY Bio248's Avatar
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    your car will be running very rich with it on a stock pulley. it is expecting more boost.
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  3. #3 Re: can a PCM hurt? 
    GrandPrix Junkie CTKGP09's Avatar
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    probably should get yours mods, then your tune
    '04 Chevy Silverado LT 4x4 - intake, headers, full exhaust, zo6 cam, 799 heads, tune, leveled, 33's
    '00 Grand Prix GTP DAYTONA 500 - L36 block, S1X, intercooled, GenV, N*, headers, full exhaust, coilovers, 5 speed swap, stage 3+ clutch
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  4. #4 Re: can a PCM hurt? 
    The Blue One blueguy's Avatar
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    Get the pulley, headers, and the PCM...then take a day to throw them all in at once.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
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    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  5. #5 Re: can a PCM hurt? 
    GTX Level Member crbquist's Avatar
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    I ran an overkill PCM tuned for a 3.4 pulley on a stock pulley for a few months with no issues. Gas mileage suffered slightly..
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
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