Hi

I have problems with Audi A4 B5 -01 AWT. Turbo is changed K03-029->K03-073 + injectors changed 0280156065 (252cc/min) -> 0280156061 (289cc/min). Also SAI is removed, only the control solenoid is left on the car.

Problem is that block 034 in VCDS cant get the test done and the B1-S2 state is always 100 or 000.

I have replaced both lambdas (both original audi parts and same numbers that the old ones) and new air mass sensor. No effect on those problems.

In block 034 says test on when i go to basic setting and rev up to 2300-2500. All the values are ok but the channel 4 keep saying test on.

Can somebody please check that file is it ok before i replace more parts.

Here is my tuned file and original file.