Re: Idle high while rolling
When the car is moving, the PCM is in dashpot control mode, not idle control. If you've done modifications to the car, then you may need to have your tuner take a look at reducing the dashpot functions. If you haven't done any modifications recently, since the hanging idle started happening, then you'll need to look for sources of excess air such as vacuum leaks (USMC suggested), sticking IAC motor, excess EGR, excess air past the TB, etc.
__________________
Jeff Chambers
1990 Mustang GT 10.032 Seconds / 137.5 MPH
14-time Street Warrior World Record Setter
CRT Performance
2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH
2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2
"There's nothing boring about a small block automatic shifting gears at 9400 rpm!"
|