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no I usually stop the car and get the code with the car off... its always the P2135 if I'm not wrong, the one that says TPS voltage correlation....

I alsto thought that it was tune related since I changed the boost from 8 to 10 psi with the balancer so I turned it back to 8psi and with the old tune that I had for over a year without problems, but the wrench light is still coming out! so I suppose its not tune related either...

I have the same issues...wrench light coming out a lot lately. Problems, car sometimes does not keep rpms on a still stand...when I shift gears it keeps accelerating...sometimes the rpms after shifting drop dramatically fast, like when you turn the car off...in the morning on cold start the rpms...

can you give me a quick step-by-step explanation where to check those values in my handheld?

no I didnt, I was looking for the TPS wire extension that are sold in some kits, I think the roush has it, but anyways couldnt find it... well I will try this week end to solder them and make them also longer... this seems to be a really common problem... thank you guys for your...

I've passed trough 3 TBs, my stock one, the one a friend had and the new one I just installed...problem is still there...I did the TPS voltage calibration like it should be done, getting it between 1.19-1.31 volts...but it did not change anything...well just for a few days only!

well I think no since I have a S/C... the stock intake was replace with the one of the S/C... I hope I'm not saying stupid things :dunce:

ahh the code that I always get its the P2135... throttle position sensor - voltage correlation etc... just that code, no others!

I just make it short... I have the famous wrench light coming up since this summer at the beginning just once in a long while, than it started more often and now its every day more times a day...this is what I did to solve the problem: changed tunes, replaced 2 TPS sensors, replaced the whole...

Hey James, sorry for the late reply, how are you doing?

Did list my mods on my signature.

Hi Guys, this is the first time I post, so I will introduce myself quickly: My name is Chris and I live in Switzerland, I own a 2008 Mustang Bullitt and finally yesterday I drove 5 hours to get a dyno tune for my car in Germany. what I have discovered is that my stock MAF was not enough...