1.9TDI Loosing Boost Power

[doogleman]

Hi Guys,
Have a 05 1.9tdi losing boost power altogether intermittently. A recycle of the ignition seems to rectify most times. I have yet yo get it onto vag com but I am fairly sure there is no leak on any of the pipes or anything like that.

Any ideas or known issues please?

Cheers in advance,

Dave.

 

[jwhat]

It sounds like it's going into limp mode and that's why the recycle of the ignition rectify's it. Is the car remapped? It could be a bad map or if your sure its not any pipes it could be the turbo on the way out. You really need a vcds/vag-com scan to find out.

 

[rowdyboy]

I've had a similar problem on a previous car with the 1.9 tdi engine. I took the MAF sensor connector off, cleaned it and hey presto no more faults.

 

[doogleman]

Hi Guys,
No remap and got vag-com result as follows....

16683 - Boost Pressure Regulation: Control Range Not Reached
P0299 - 000 - -

Still have to get onto lift to properly check pipes and will check maf sensor connector as suggested..