Go for at least a 20 minute drive to bring the engine up to working temperature.
Start the engine from COLD and select log START.
This assumes you know how to engine measuring blocks.Ī good, first check, is the engines coolant, fuel and air temperatures as these are very important for fuelling.įind the block that displays temperatures. It is advisable to fit a new air filter and fuel filter before running any checks. Injector diagnosis (You can't diagnose injectors using VCDS) The following measuring block checks will help you investigate an engine problem that hasn’t logged a fault code. Pre CAN control engines tend to need more diagnosis while CAN control engines do more self diagnosis. The information here is only a general guide as there is variation between engines.
It is a good idea to log your engine when it is healthy so that you have something to use for comparison when your car is not healthy. This guide applies to most VAG pd tdi engines.
