BigMouse

I need an ECU that will work with the 20v Turbo from a 200tq. How much would I expect to pay for it? Is there any other ECU that can be used? urS4 perhaps? Also, are the Fuel Injection and Ignition computers separate modules, or are they combined in a single 'brain box'? My 88 80Q has separate ignition and Fuel Injection (CIS-E) modules. If the 200 also has separate, will I be able to use the ignition module I have now? The 20v has MPI injection, correct?

Can I use the fuel pump and filter that is already in my car?

And one more question: Are the mechanical procedures (fuel hoses/rail/injectors, Cyl head, mounting, etc.) the same with the 20v Turbo as with the 20v non-turbo?
Thank you for helping out across models.

SteveJ_in_TX

There is a guy on the Quattro list that has done a 10v Turbo transplant on his 80Q, but the 20v Turbo (as you are aware) is a completely different engine. Go to Audifans.com and do a search for the name Javad.

The '91 200q20v's engine was only offered that year, so they aren't very plentiful to begin with. Your best bet is to find a rear end totalled wreck and buy the whole thing. Many people who have done the 5000T engine into a 4000 have found that it's just cheaper to buy the whole car and gut it for the parts you need vs. buying it piece-by-piece

The last wrecked '91 200q20v that I saw went for $3,000 for the whole car.

Good luck to you, and let us know what happens.

-Steve Jensen
87 5kcstq