Mk2 vr6 running problem.

[*tell*]

Just bought the mk2 of a mate after the 2.8 engine died ( mk3 obd2). He fitted a late corrado 2.9 into it still with the same loom and ecu. Question is would it run better with a corrado loom and ecu? Thanks terry.

[ToddyGTi]

You should require the 2.9 ECU as the fuelling maps will differ etc but the looms are the same if it is an OBD1 Coil Pack Engine (93-feb 95ish)

[*tell*]

Cool thanks for the reply 
Will a late corrado ecu connect to the obd2 plug okay?
I think all corrados are obd1 because there all pre 95.
It's running a mk3 aaa ecu with an eBay Motorsport chip in it 
So I'm wondering if I need late corrado ecu or a mk3 golf ecu.

Thanks terry.