I have a slight problem! Ive noticed that my car is very rough on idil. It seems like the engine is going to stall but it doesnt. I've ran VCDS and its coming up with
Lambda sensor malfunction, sensor 1 upper limit exceeded,
Oxygen Lambda sensor : Reference Voltage / No Signal / Communication
fueling measure system 2 malfunction: Implausible Signal: intermittent.
I have a full decat exhaust and uprated clutch running with shark stage 1 etc.
My cars done 13k and 3k with the exhaust.
Can these problems be related to the lambda sensor and the decat?