Im putting a z20let engine into my astra mk4 1.6 16v, the engine already sitting in, i have the full engine loom, transponder, ecu ect, ive been told i need too change the dash loom aswell for one off a astra mk4 gsi turbo or it wont work.
Is this true.
i throught it would work by just plugging the fool z20let astra mk4 lights. ecu,aircon, engine loom into the box behind the abs unit as it looks too be same fitting as the astra gsi one.
anyhelp with this too confirm if indeed the dash wiring needs changing aswell as i have this also just too be safe.