Stalling??!? Help please

[joeym4130]

Im having this weird problem that just started today....
The car runs fine otherwise.
It idles really rough when first started, like aroun 750-1000 in between there. If i drive it for a while, when i come to a stop, the car stays at around 2000RPM for about 3-4 seconds then drops to 800 for about 2 seconds, then falls until it stalls. I dont know where to start here, what can cause this?? ISC? I found it odd even w/ my BISS backed all the way out to let in air, it will still stall. I cant find any vac leaks, could timing do this? Any ideas thrown my way would be mucho appreciated... thanks!

 

[BUCK]

Make sure your Throttle Cable isn't in ANY kinda bind - I just added an extra steadying support to mine once & it did the same thing - If you worked on something lately & changed it from where it likes to "lay" it will do exactly what you describe.

 

[CurtTSI]

Try the easy things first. Check the ISC coil resistances. If they are outside the 28-32 ohm range, the ISC is probably bad. Check the resistances between pins 1&2, 2&3, 4&5 and 5&6. If any of these is outside the normal range, the ISC is probably the problem. You should be able to check these resistances without removing the ISC from the car.

 

[joeym4130]

thanks for the replies guys. its not the ISC... I have 2 good ones i have tried and no luck. I should describe this better: Its running really rough at low RPMs, sputtering and misfiring it sounds like. It sounds like the engine is barely able to keep itself running around 1000RPM. I did the plugs, the wires look good, but i may replace them to be sure, could ignition timing do this?? Any other things for a rough sputtering idle? Sometimes (and I mean sometimes, it happens rarely) the car will kind of studder in boost under WOT. (Not attributable to boost leak, no leaks, so maybe it is ignition related) I could find no vac leaks... thanks.

 

[joeym4130]

i want to get this fixed before spring break is over.... u guys just start throwing ideas my way, and i'll check em out...i need any help i can get! tomorrow im gonna get new wires for the hell of it to be sure, and test the coil pack, is there a specific way to test the coil pack besides checking resistances??