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 …
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 …
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 …
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 …
What is Proper ISC Voltage and where to check? - galantvr4.org
Aug 11, 2010 · Have you pulled your ISC and make sure it moved like in the youtube video I keep linking on Tuners? After bootim the ECU homes the ISC by stepping it all the way out, then …
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 …
isc not working - GalantVR4.org
Aug 13, 2010 · So replaced the ISC after my last ecu blew a driver, I replaced the ecu and rewired the pump as some of you may remember, I have a bad idle surge now, and I adjusted the biss …
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 …
ISC Failed - GalantVR4.org
Sep 1, 2010 · I want my ISC because it makes the car much nicer to drive in traffic and it saves on the footwork needed to keep it from stalling. I had no ISC for a long time and it sucked having …
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 …