chvygrl SS Posted November 17, 2014 Report Share Posted November 17, 2014 Hey Guys! Have any of you experienced " Reduced Engine Power" before? So I have had this issue with my SSS for many years now and I have tried changing throttle position sensor, the Accelerator position sensor, and the crank position sensor in the past, but it seems that it's still an issue. It had been about 8 months since I replaced my accelerator position sensor and it was fine until today. It threw off the code P1516 which is the (TAC) Throttle Actuator Control, I'll have to replace it now and hope that the problem finally gets resolved. Have any of you ever replaced your (TAC)? If so please share your experience, and any advice or thoughts on the matter would be helpful. Thanks Quote Link to comment Share on other sites More sharing options...
rcapone Posted November 17, 2014 Report Share Posted November 17, 2014 (edited) Do you have a tune or any mods? You can always call Zippy - he's an awesome tuner and very knowledgeable about these trucks - 702-406-0333 Edited November 17, 2014 by L8ERBRO (see edit history) Quote Link to comment Share on other sites More sharing options...
Mcinalli123 Posted November 17, 2014 Report Share Posted November 17, 2014 Check the grounds behind both heads it's a very common problem I know the passenger side cylinder head has a purple wire going to it that phrase and you get late intermittent reduced engine power I don't driver side there's a ground also Quote Link to comment Share on other sites More sharing options...
chvygrl SS Posted November 17, 2014 Author Report Share Posted November 17, 2014 Do you have a tune or any mods? You can always call Zippy - he's an awesome tuner and very knowledgeable about these trucks - 702-406-0333 Thanks L8ERBRO I appreciate it, Ill give him a call. (: Quote Link to comment Share on other sites More sharing options...
2003_SuperSport Posted November 17, 2014 Report Share Posted November 17, 2014 Check the wire harness to the TB as well and make sure there are no loose prongs... I had REP mode once after I installed my 90mm TB, I checked and rechecked all the wiring and found nothing... Only went REP when it was cold at first startup, I just cleared the code and it ran fine... I put a good charge on the battery overnight and rechecked grounds again and it went away and haven't seen REP in almost a year now... Try checking the TB harness and putting a good overnight charge on the battery... Quote Link to comment Share on other sites More sharing options...
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