What could cause high IAC count 56counts (high idle) when I put the car from drive to neutral or park
the IAC stay at the same count as it was in drive(the TPS is always at .44), shut the car off, wait 10 second, restart it and it's perfect, IAC 16, TPS .44
The chip is TT, brand new AcDelco IAC, the computer saw the Park/Neutral switch
I've try another TT chip, same result, changed all vacuum, new O2
thanks!
the IAC stay at the same count as it was in drive(the TPS is always at .44), shut the car off, wait 10 second, restart it and it's perfect, IAC 16, TPS .44
The chip is TT, brand new AcDelco IAC, the computer saw the Park/Neutral switch
I've try another TT chip, same result, changed all vacuum, new O2
thanks!