Problems with tps
#11
12 Second Truck Club
iTrader: (13)
mine is doing the same thing. if i drive with the ac on and give it about half throttle the check engine light comes on and i get p0121 code and it goes into so kind of limp mode and wont downshift if i floor it or anything. its done it 3 times only if i turn on the ac? i've just been pulling the negative off for a few hours and it resets. im suppose to get a new tune soon...
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2002_Z28_Six_Speed
GM Drivetrain & Suspension
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10-04-2015 01:34 PM