So i have been searching about how to check my codes on a 90 N/A S5. ..

I read, find the single green wire near the leading coil and ground it out and turn the key to on , but the light acted normal and no blinking occured.. it stayed lit..

my haynes manual says the check connector is a yellow/blue also

I could only find one green with black stripe wire with a connector with nothing plugged into it, but it didnt flash or stay off like it says its supossed to.

also read a 6 pin green connector on the same harness as coil, but which wire??

can anyone help me please

here are some pictures, which one is it??



I have a haynes manual but it doesnt seem to be helping

 

On S5, the teste connector is near the battery. And it's a single plug. you need to put it at ground.

might help

http://www.johnr.com/cpucodes.html

Dumarjo