Hi guys,

Just changed the head gasket on a Mk2 1.2 8V for a friend.
Engine starts but has a rough idle, almost as though on 3 cylinders.
It's also now got an orange engine / transmission light lit up on instrument panel, my friend hasn't got the manual for the car, so i'm not sure what this light refers to? From reading other posts, I'm guessing it's ECU, lambda sensor or injector blocked.

I'm 99% sure it's timed up correctly (having looked at the various posts on the forum), and can't see any looms hanging off, so am at a bit of a sticking point.

Hope someone can help.

Antwist.