Tyeler18
15+ Year Contributor
- 2,491
- 242
- Dec 16, 2008
-
Casa Grande,
Arizona
All 3 of my 90s all have idle problems. Each ones running a 91+ TB with matching sensors and they all surge.
I was reading a post by Steve, which I can't seem to find, that was saying the wiring is different between the 90/91+ ISCs but can't find a pinout to confirm that.
Currently my ISCs are all still stock wiring, they're just plugged in off the main harness just like a 91+ is. Anyone have any insight or a pinout to confirm the actual wiring to the ecu is different?
With link plugged in my ISC will sit at 120 steps, then when it's started it'll slowly decrease until its at 0 steps and is impossible to get to anything other than 0.
I was reading a post by Steve, which I can't seem to find, that was saying the wiring is different between the 90/91+ ISCs but can't find a pinout to confirm that.
Currently my ISCs are all still stock wiring, they're just plugged in off the main harness just like a 91+ is. Anyone have any insight or a pinout to confirm the actual wiring to the ecu is different?
With link plugged in my ISC will sit at 120 steps, then when it's started it'll slowly decrease until its at 0 steps and is impossible to get to anything other than 0.