I have an 89 ranger XLT 4X4 2.9 Liter V6 5 speed Manual Transmission was running like crap idle was rough. I replaced the IAC & The TPS now the engine Idles High in neutral or when clutch is in but runs normal while driving is the problem the TPS??? I was thinking of taking the TPS off and turning the sensor either clockwise or counter clockwise has anyone ever messed with one of these things or has any experience with this any help would be great thanks