Hello,
The car runs ok and will cruise at 70 with no problem, the problem is it will idle at 400-500 or not at all (stalls)
while waiting at a traffic light to turn green and two footing it to keep it running, after a minute or so the engine will start running real rough as if on two cylinders, when I start to drive it runs fine.
Starting in the morning (cold) the IAC alows it to idles fast as it should til it warms up.
Things I've tried: vacuum hoses, all ok (very few) no EGR valve on car, TPS, MAP, ECM, cleaned throttle plate, I have vacuum to the fuel pressure regulator, when I remove vacuum line and drive it, it is the same, i don't have a pressure guage to see if there is a change in fuel pressure when I disconnect the vacuum line.
The car runs ok and will cruise at 70 with no problem, the problem is it will idle at 400-500 or not at all (stalls)
while waiting at a traffic light to turn green and two footing it to keep it running, after a minute or so the engine will start running real rough as if on two cylinders, when I start to drive it runs fine.
Starting in the morning (cold) the IAC alows it to idles fast as it should til it warms up.
Things I've tried: vacuum hoses, all ok (very few) no EGR valve on car, TPS, MAP, ECM, cleaned throttle plate, I have vacuum to the fuel pressure regulator, when I remove vacuum line and drive it, it is the same, i don't have a pressure guage to see if there is a change in fuel pressure when I disconnect the vacuum line.
Dec 19, 2009 at 10:57 AM