I have a 2005 1.7 cdti van but at the moment its being a right pain. The EML has come on and has stayed on. I have had it on a diagnostic machine, but no faults showed up (£40) the garage advised me to replace the mass airflow sensor at £88, which I did, I have cleaned the EGR and made sure the valve is working but still the EML is on constantly from when you first turn the ignition key.
Also I have noticed that when the engine is hot the rev counter seems to have a mind of its own reving between 2000 and 3000 rpm, also it seems to be loosing power in 2nd and 3rd gear and goes into limp mode for a few seconds, then picks up. I started to take the crankshaft sensor off but on a cdti it is at the back of the engine above the driveshaft and a right pain to get at, I cant see what type of bolt is holding it on, can anyone shed some light on as to what type of bolt it is likely to be ( it does,nt feel like a torx bolt) and do you think that this is the right way to go and replace the crankshaft sensor...?
Many thanks in advance for any help.....