replacement engine

[pug_666]

hi, im currently looking to do an engine swap, my 1.4 quicksilver engine for 1.6 gti engine, how do you know what the correct ecu is for the engine ?

[pugjim]

ECU is a magnetti marelli 1AP, you will also need the immobiliser transponder box, ignition barrel ring and chip from the key of the donor car. Without all these you will have issues with the immobiliser. If all these parts are not available then you can have the immobiliser in the ecu unlocked.

[Harv]

Originally Posted by pug_666

hi, im currently looking to do an engine swap, my 1.4 quicksilver engine for 1.6 gti engine, how do you know what the correct ecu is for the engine ?

That would depend on what you've got at the moment - you will need either a 3-plug or single-plug ECU which suits your car, as well as the correct engine loom to go with it.

When you do get your new ECU you can either make sure it's unlocked (start the donor car with the immobiliser connected, then unplug the immobiliser box under the dash) or, as pugjim says, get the ECU with matching immobiliser and keys. The pickup ring is universal, so you shouldn't need to swap that.