my car is a 1985 Euro 190e 16v
I have no X11 Pin #3 because the car is euro
when ti was imported they had an oxygen sensor and cat installed.

can someone tell me exactly the behavior of a cold start valve?
when does it activate? how long does it stay on for? or from wat temps does it stay on?

this problem is so frustrating i have tried everything

also wat would be a sign of a broken EHA?