I'm sure this question is asked before me but it is 75 pages of questions I have all the conversion from the abf engine and the wiring Instead to change all the wiring of the car (take out the aft wiring and put the abf wiring) what else I can do to just connect them together?
There are complete rebuild manuals on this forum. They also explain the wiring issues. You'll have to connect the ABF wiring to the original loom, simply said. Look on a2resource.com to see what is what. If you have specific questions, people can help.
couldn't be simpler. get a mk3 abf wiring loom matched to the age of your car, swap it over. pre-96 the engine and lighting looms are separate, post-96 its all one big lump. you can convert either way but why bother as you rcar is MPI you can keep the original fuel pump also as its the same 3 bar unit the GTI/16v uses
oh and if the abf ecu has an immobiliser you use a registered copy of vagcom/vcds to match it to the immobiliser in your car (iirc AFT are post-95 so it will have one?) if the abf ecu doesnt have an immobiliser just plug it all in and go