robster

IAC count is 0 at idle, TPS voltage 0.57, Idles fine. When rolling RPM sit a little high as long as the clutch is pushed in. If i take it out of gear while moving and let out on the clutch it starts revving, like 3500 rpm's. I've checked all the vacuum lines i can find and hosed every line down with WD40 and found nothing. HELP!!!

vtanju

iTrader: (2)

hi,

please give us more detail on the vehicle.
check the throttle blade to see if it is sealing up properly and also check to see if there are any holes on the blade. also check the idle airflow values, and the tps threshold

hope this helps,

volkan

robster

car is stock. i put a new o ring on the IAC today and it seems to be running better, but my IAC count is acting weird. When i first crank it, it starts around 96 and slowly drops to 0

jay_lt4

iTrader: (4)

there is a vacuum leak

98Z28CobraKiller

iTrader: (17)

+1.

You should not have an IAC count of zero unless the throttle set screw is holding the TB blade open or the hole in the TB Blade has been opened up too much.

98Z28CobraKiller

iTrader: (17)

Use brake clean or carb cleaner. WD40 is oil.

robster

used carb cleaner on every hose i could find. NOTHING. Maybe theres one on the back of the intake. IDK. but its running better now

98Z28CobraKiller

iTrader: (17)

The AC vacuum line and brake booster vacuum lines are in the back. Also, the AC line is attached to a T which I have seen many break. That line is sometimes in the loom and is plastic, not rubber.

robster

ok ill check those. another thing i noticed was that if i turned the air on it would idle fine and sometimes with it off it would rev

LastHawk

This is my exact problem. And this morning my traction control module started ticking with the key just turned to accessories (which in turn kind of ratcheted my throttle cable back and forth a tad)

For the OP, were you able to isolate a leak or fix the problem? I've heard of all the possible problems with these car symptoms, but not a single resolution/fix.