Tomas Audi S6
Technical data
Audi S6 2,2t -96, AAN-engine, VEMS v3.3 with Motronic connector,
Box no. 1986
- New trigger solution with cam Hall inverter
- IAT is NTC type
- Siemens 630 cc/min injectors.
I have done one other Audi: MembersPage/MattiasSandgren/OskarAudiSFour
But that one doesn't have the cam Hall inverter (but works flawlessly anyway).
Here is the config, tables, MSQ and datalog of my problem:
http://www.vems.hu/files/MembersPage/MattiasSandgren/TomasAudiSSix/
Problem description
Above 4000 rpm the engine runs very well without hesitations or other problems, feels strong and runs with a clean sound. No sign of trigger, ignition or other ECU problems.
The problem is below about 4000 rpm we have slight misfires which can be heard at idle and gives a slightly rougher idle quality and the lambda value varies just a bit too much for this type engine. This is not a "show-stopper" but what happens during normal daily driving is. If the engine is given any load above light driving, like a strong acceleration it will appear to misfire.