Originally Posted by ThUg LiFe
my car is really starting to piss me off. ive got the idle problem where the revs drop down then pick back up. so i put new plugs, leads, tps but that didnt really help. i thought it had fixed it but pulled up to a set of lights and the revs were constantly up down up down. sounded like a piss weak lumpy 5L. i went to disconnect the isc today and nuthing happened. revs didnt move one bit. and i can turn the idle screw all the way out and it wont even stall, just stays at about 800.
block the fuel return line
does it help ?
fuel reg is leaky and you dont get full fuel preasure
at idle pull the ics plug
does it make a decent change ?
if not then the ics is crook
I have used wrecker parts many times to fix these problems and with good success. If the idle is average and you cant hear the Ics working when cold then a used replacement is only $20.00