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Re: TAP vs 1551
Not sure about the A4 1.8t ECU but on older Motronics like in my
S2Avant with the ABY engine the recoding of the maps does in no way
interfere with the diagnostics function. My local Audi dealer can
read the codes from the Hohenester Stage I ECU of my S2 without even
knowing that I run a different ECU. To me it looks as if either the
A4 ECU is totally different or the so called "chip tuners" didn't no
what they were doing.
- Hans-Juergen Schneider
'93 S2 Avant
'89 CQ 20V