Maxx ECU - Audi AAN (S2 / S4 / S6) adapter harness harness type:c1 + c2 / with knock and AC suppor When this occurs its possible

When this occurs its possible for the crankshaft to rotate freely from the crank pulley causing catastrophic valve interference and engine failure

From the Xona Rotor literature we learn the following:

(MK1 TT / TT225 quattro

variable valve timing

Stage 2 "Endurance" Series:

Maxx ECU - Audi AAN (S2 / S4 / S6) adapter harness harness type:c1 + c2 / with knock and AC suppor When this occurs its possibleCompatible with the Audi AAN engine harness found in the 1992 1995 Audi S4 and S6 as well as the european audi S2. We've happy to announce that EFI now sells and tunes in house as well as remote the complete line of Maxx ecu hardware products. Available in multiple ecu trims, the Maxx ecu provides extensive inputs and outputs to support a wide range of tuning needs. The Audi PNP kit consists of the c1 connector wired to the 55 pin Motronic connector.