For a 1999.5 A4 1.8TQ 5 speed
Interested in either a short term relationship (borrow for beer) or long-term commitment (I'll buy the thing if you're looking to get rid of it and it resolves my emissions issues)
Be warned, still missing the stability of a previous 4 year relationship with a stock spare ECU that ended all too soon. You don't know what you've got `til it's gone...

I will check tonight and let you know.

Anyone know to what extent the different chip codes might be interchangeable?

I'd love to give it a try and see if it works.

I'm sure they would but at this point you should just rig up a power kill switch for the ecu and go back. chalk it up under meh lets see what happends.