Quote:
Originally Posted by Franke
Vettetech1, throttle position sensors are famous for off idle sag. They can be tested with a ohm meter to see if there is a dip in the resistance just as the sensor starts to move off idle. Its a potentiometer and varies the voltage to the ecm.
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Watched it on my Solus but don't see a dip. I will have to check with an ohm meter. Its odd it only does is when you stuff it. If you gradually ease through the throttle it is fine.
Also I know there is a MAP sensor on the back of the Intake. Is there another sensor for Vacuum on these cars.
My Solus shows 37KPA at idle on the MAP then there is reading for vacuum witch is 0 with .58 volts.
My IAC is at 16 counts at 600 rpm does that sound normal?