manny of the thinge you are asking about you can see in my photo libary.

you can write to me direct mail if you like . kimdomino@gmail.com

Air flow /mass sensor it located just behind airfilter !

Hi sorry for the late response i was a bit busy. I have not got the tester unfortunately but i will try to organise one soon

Where is the Air Mass Sensor located please?

I had a time a guy from a high tec. work shop only supporting OEM Garage dealers and he told me that my air mass and faulty becourse he calculated the rpm, engine,vollume and said air flow was to low, change the air mass sensor with out any change, it turn out it was the M.prop valve on diesel pump was stuck and was lean on diesel pressure and some time stall the engine. Your fault could be the other way around.To high pressure and wear the safty valve on rail and to high mix of air/diesel.

I had 3 OEM dealer mec. of this fail , no body figur it out .Had dig out the fail my self.
After this my trust on OEM garage got on very low place.

You also due you self a favor. Disconnect battery and remove it. Turn the fuse box upside down and disconnect all conectors to check corrosion clean and lube them again. Just to be sure your hunting a ghost.

If you get the Tester we could try compare diffrent parameters in the ECU. I also got a 2.5CRD 2002 .
Engine coolant temp.
Air mass. / air temp.
Diesel pressure
M prop valve value.
EGR value ect.

OBD tester U581 I don't know how much you can see with this tester but I hear it's working okay on other brands. And there is no battery inside

U581 Can OBDII OBD2 Auto Kfz Diagnosegerät Scanner Code Fehler Reader 15 Pins | eBay

Hi model is 2001 model. I will try the egr weekend if not next weekend

the 2001 model got oil filter insert element later models got spin on oil filter !