Idling and stalling problems can really add stress to your daily commute. The most common culprit is carbon buildup on the throttle body, exhaust gas recirculation (EGR) valve and idle air control ...

We had loss of power on our Audi A3 recently. The coil and DPF warning lights came on at the same time. We called the RAC and they reported "Air mass flow during regeneration too high" and told us to ...