Quote:
|
Originally Posted by tropikal
Ive seen it done on my car 97 gc8, and on later models
I was told about this from Subaru Dealership, ring up and find out more, like i said i could only briefly remember.
He did ask for the method to adjust the revs..
|
O.k. well perhaps your talking about an
ecu reset and fast
ecu learn.
The
IAC valve is non-adjustable and the
ecu has a set idle rpm map...It cannot be adjusted by the user to either increase or decrease the idle speed.
The
ecu pulses current to the
IAC (it's simply a Dc stepper motor & plunger) in reference to the engine speed. If the
ecu has learned bad habits or someone has played with the throttle stop then a 30 second
ecu reset wipes the idle pulse memory.
Later CAN BUS (01- on) cars can be adjusted + or - 200 rpm through the the Subaru selectmonitor (scan tool).