Troubleshooting ECU drivers and the ISC - GalantVR4.org
Nov 16, 2014 · I'll test the ISC tomorrow to confirm it's bad, but suffice it to say something bad happened and completely fried the ISC driver. The ECU seemed fine up until recently, when I …
ISC replacement options. - GalantVR4.org
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 …
Let's talk FIAV and ISC block off plates! - GalantVR4.org
Apr 1, 2011 · The ISC did just fine, though as stated already - took a few more cranks and sometimes a second of throttle to get it idling normally. Btw, 3 out of 4 adjusters were easy as …
ECU/ISC Driver question - GalantVR4.org
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 …
ISC clamp - galantvr4.org
May 26, 2010 · If the ISC can't react fast enough, it won't catch them in time. It might not be as difficult as you think to tap a nipple into the FAIV to port air into it from pre-compressor. You …
ISC open too much during idle - galantvr4.org
Jul 31, 2015 · The ISC stays around 76 or 77 steps during normal idle, while the engine is around 1500 rpm. If I ground the connector on the firewall, the ISC steps drop down to 9 or 10, and …
Setting BISS and ISC Range - GalantVR4.org
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 …
FIAV, ISC.... Idle Surging Horribly! - GalantVR4.org
Mar 27, 2007 · The ISC is a stepper motor, containing two coils that energize on and off in succession to rotate the plunger in and out. When you do a key-on, the ISC wants to do a self …
ISC??? - GalantVR4.org
Sep 13, 2009 · The ISC does this as a stepper motor under control of the ECU, which can finetune the idle rpm. The Fast Idle Air Valve does this as a very coarse adjustment based on …
ECM link tuning... - GalantVR4.org
Aug 20, 2011 · OP, if your car has boost leaks, misadjusted TPS, misadjusted ISC, misadjusted base ignition timing, dead o2, over heating, forget it dude. Make sure all this stuff is functioning …