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- ISC replacement options. - GalantVR4. org
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 Rock Auto? Are there better options I'm not finding? I have yet to OHM mine out but with the motor unplugged and the damage I'd say there's a good chance it's bad
- Troubleshooting ECU drivers and the ISC - GalantVR4. org
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 installed the WB I mentioned this to Thomas, who seemed to think the WB install couldn't have caused the issue That was a relief
- Setting BISS and ISC Range - GalantVR4. org
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 goes anywhere from 0-100+ Does anybody have hard evidence on where it should properly be set @ idle with a logger using MMCD?
- Lets talk FIAV and ISC block off plates! - GalantVR4. org
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 pie to adjust down the runt of the litter was a B*tch! Blow torch and all it took like an hour and a half to get it all of the way down
- 1G DSM, get it up and running thread. - GalantVR4. org
the ISC motor does click, but for troubleshooting purposes, I've just unplugged the connector Unplugging it has had no effect on the ~30sec run time As far as logging the ecu, I'm having a bit of trouble with that see this post: Topic: TMO Logger 'working properly' but 'link is down' suggs?
- ISC??? - GalantVR4. org
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 temperature
- Open Loop Symptoms? - GalantVR4. org
My ISC was only reading 47ohms on one coil, other three were in spec at 30ohms That small increase in coil resistance knocked out part of the ISC control circuit
- FIAV, ISC. . . . Idle Surging Horribly! - GalantVR4. org
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-check and stop at 50%, or so I understand
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