Hi

I have this zafira with the codes p0335,po340 which will clear but come back on starting the car u2103 has not returned. There is no rpm signal in the coolant module or dash [tach not working] but is in the other modules, I think there is a brake in the can line but do you know which wires they are I was looking for twisted wires but ther are none also do you know which order the can line goes to each ecu/node.

Ray