Apr 3, 2004 · The ISC basically gives you temp dependant idle changes. Good for a normal car I would think but I don't need it anymore. I"ll set the idle for warmed up and just crack the throttle a bit to get …

Aug 23, 2011 · Can someone clue me in to what the ISC is? Idle Speed Control, its a stepper motor on the throttle body. It can often cause idle surge when it goes out. I would look at the ISC itself and …

May 11, 2008 · You want the ISC in the middle of it's range, while adjusting the BISS for optimal setting (Our idle should be 800 RPMs). But what exactly is the middle of it's range? If you log it, I think it …

Jul 9, 2003 · I replaced the ISC unit with one I got from Gabor, replaced the throttle body shaft seals (which were basically not there anymore), re-adjusted the Throttle Position Sensor, and reset the …

Aug 31, 2013 · As I work through many, many issues with 1587, I have found that I have a blown ISC driver (IC105). According to ECM Tuning, the drivers do the following functions: IC104 controls ECU …

May 20, 2016 · Seems the ISC driver kursploded from a short, which explains why it was unplugged. The OEM replacement seems to be big money. Has anyone had any luck with the one offered by …

Feb 8, 2009 · Recently the car has have some idle surge problems for a long time and I don't know what going wrong with it. I have been replacing the ISC (used) and one of the IC that used to control the …

Nov 1, 2016 · Hey guys I was wondering if anybody has had an issue blowing a fuse Grounding the two points to isolate the isc to set idle. I did notice there is another...

Feb 23, 2009 · It sounds to me like your ISC (Idle speed controller) isn't functioning. It should hold 800 rpm no matter what. Setting the BISS ISC Testing You should also open the ECU and check for any …

Dec 6, 2002 · There's a big o-ring where the ISC mates into the throttle body, be careful that it doesn't fall out.Don't overlook a pressure test on the intake tract. There's a million places where leaks can …