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ls1nova71 · 07-13-2011, 10:31 AM

Need a little more info. What year of TAC and pedal are you using? Is it out of the same truck the engine came out of? What year PCM? The TAC and pedal have to match with the tune in the PCM, if you have the '05 PCM then your TAC should have a part number 12590008 (IIRC) and the pedal should be the all plastic type.

07-13-2011, 10:31 AM	#2
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: DBW throttle body trouble Need a little more info. What year of TAC and pedal are you using? Is it out of the same truck the engine came out of? What year PCM? The TAC and pedal have to match with the tune in the PCM, if you have the '05 PCM then your TAC should have a part number 12590008 (IIRC) and the pedal should be the all plastic type.