Hi all.
For a long while, I was getting the EPC light intermittently appear on my 2013 A3 8V. Scanning revealed it was throttle position sensor B at fault. My local garage said it was fine to leave, but that it would get worse. It got worse.
They replaced the throttle body, however the issue remains with the same fault code. Unfortunately for me they have now declared it beyond their ability to fix, so I’m waiting to take my car to an Audi specialist. When driving, it can be ok for a week, and then the light can appear every journey. There’s no consistency. However even when the light isn’t on, there’s what feels like a ‘dead spot’ in the throttle response. I don’t know how else to describe it other than if you slowly increase the pressure on the accelerator, the car speeds up except at some point it suddenly feels as though you press slightly harder on the pedal but nothing happens, or there is a slight loss in power. Any ideas on what could be causing this? For what it’s worth, the garage assured me it was a genuine Audi part that they fitted.