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Changing from an ODB1 2.8 VR6 to a 94 2.9 VR6


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Yes, all Corrados are OBD1. Early ones (pre-1993 I think) have a distributor, later ones have a coilpack, same as the OBD1 Golf VR6.

If your current 2.8 engine and the 2.9 you're putting in are both OBD1 coilpack type, all you need to swap is the ECU and the engine itself. You can use your existing wiring loom.

If going from a 2.8 coilpack to 2.9 distributor, you need to swap in the the engine wiring loom from the donor car.

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