I noticed a loss of power like the turbo had stopped working many months ago and the problem went away but recently it has reappeared and happens on almost every journey especially if the engine is revved fairly high.

I have taken off the air mass flow sensor and sprayed teh insides with carb cleaner and I have sprayed the electrial connector with cleaner to see if that helps but it hasn't.

I am reluctant to take it to Audi as the bill for a new turbo will be more than the car is worth I expect and don't want to have to buy a new air flow sensor if I can avoid it. I will if it will definately fix the problem.

The car is a 1998 TDI (red I) and has 216000 miles on the clock.

Any ideas or suggestions are really appreciated thanks, James

 

Check to make sure the egr valve isnt plugged with carbon.

 

Thanks Dankhound. What is the egr valve and where do I find it. Thanks

 

Can anyone help please?
Where is the EGR valvue and how do I check to see if it is plugged with carbon?

Thanks

 

There will be a pipe coming off the exhaust to the intake somewhere. Im not absolutly sure of its location because we dont have diesels here. Egr stands for exhaust gas recirculation. It takes exhaust gas and puts it into the intake, so there will have to be a pipe that leads between the two.

 

if its close to the vw tdi which I have no idea if it is. Like he said clean the egr but on my beetle deisel the mafs was the trick though clogged egr is a coomon fault and deffintly a diy job. Just look off the intake manifold it should be there

 

Number 1 is the egr.