Single turbo harness conversion grounding

[Garfinkles Motor Works]

If your car is highly modified the PFC computer will not learn to idle using the ISC .but you can get a car to idle by setting the computer ,timming and throttle body settings correctly .My car would to idle with the ISC hooked up if the AC was running .If the AC was turned off then the ISC did not control the idle .Steve Kan was staying at my house years ago and he disconnected mine and told me the car would not learn to use the ISC .To get a computer to learn to idle the car needs to idle for 15 -20 minutes with the ISC clean and pluged in .

[speedjunkie]

Originally Posted by Mitchocalypse

Yes I've stripped everything down and was de-pinnin them from the plugs that go into the ecu. If I need to hook the ISC back up I will just plug the pins right back in and run the wires back through.

Here is a picture of the grounding wire. There were a few junctions but everything from them is removed. It's just a stray wire leading into an ecu Pinout. Since its a ground I'm just not sure if I should just de pin it or solder it back into another ground.
Pic:

Hmmm, not sure on that one. I left the ISC connector in, but apparently I can get rid of it now lol.

Originally Posted by TitaniumTT

That's because PFC. Run any other aftermkt ECU and it'll run just fine once setup properly.

The 13B-RE turbo FB in the shop now that I installed a Haltech PS1000 on idles PERFECTLY @ 850rpm all day everyday. and it ramps up when cold, and does everything it should do.

Yeah that's pretty much what we've concluded too. But I really like my LED commander!!! lol And also my homemade commander mount that looks like it's floating lol.

Originally Posted by Garfinkles Motor Works

If your car is highly modified the PFC computer will not learn to idle using the ISC .but you can get a car to idle by setting the computer ,timming and throttle body settings correctly .My car would to idle with the ISC hooked up if the AC was running .If the AC was turned off then the ISC did not control the idle .Steve Kan was staying at my house years ago and he disconnected mine and told me the car would not learn to use the ISC .To get a computer to learn to idle the car needs to idle for 15 -20 minutes with the ISC clean and pluged in .

I'm pretty sure my tb settings are correct, other than the bleed air screw because everything is modified. Not sure about timing and all that though. Maybe I'll try it again sometime lol.

Mine would run OK sometimes, but then when I'd return to idle it would act hunt, stop, then hunt again sometimes. It was weird.

Sorry to hijack your thread, Mitch. lol

[Mitchocalypse]

Originally Posted by speedjunkie

Hmmm, not sure on that one. I left the ISC connector in, but apparently I can get rid of it now lol.



Yeah that's pretty much what we've concluded too. But I really like my LED commander!!! lol And also my homemade commander mount that looks like it's floating lol.



I'm pretty sure my tb settings are correct, other than the bleed air screw because everything is modified. Not sure about timing and all that though. Maybe I'll try it again sometime lol.

Mine would run OK sometimes, but then when I'd return to idle it would act hunt, stop, then hunt again sometimes. It was weird.

Sorry to hijack your thread, Mitch. lol

no worries!
Do you remember what you did with the ISC ground at all? because it is the same one. Worst case I just do whatever you've done but bypassing the ISC plug. I assume you've soldered it somewhere?