Tgonsoulin Posted August 1, 2013 Report Share Posted August 1, 2013 Has anyone ever had a high idle problem when shifting gears. It's kind of intermittent and it seems like it happens more in the heat of the day after I have been in traffic a while. 2007 SGT approx. 58000 miles all stock. Quote Link to comment Share on other sites More sharing options...
2007tungstenGT500 Posted August 1, 2013 Report Share Posted August 1, 2013 (edited) yes. i have experienced that on my 2006 mustang GT and determined it was related to an aftermarket tuner. recently saw this happen on my 2007 GT500, but since it's running a Ford Racing tune, i think it may be related to my alternator going bad. i was having starting issues so i recently bought a new battery. still had the issues so in testing i noticed that my alternator is undercharging. haven't replaced it yet, but my theory is that the computer is compensating for the lower voltage by over-revving slightly. i am no mechanic or electrician so this is purely a guess. Edited August 1, 2013 by 2007tungstenGT500 Quote Link to comment Share on other sites More sharing options...
pottydr Posted August 1, 2013 Report Share Posted August 1, 2013 Throttle Position Sensor or TPS, they are a pain in the #@! Quote Link to comment Share on other sites More sharing options...
Tgonsoulin Posted August 2, 2013 Author Report Share Posted August 2, 2013 They are a pain in the #** to replace? Quote Link to comment Share on other sites More sharing options...
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