[dag0407]

Anyone got some ideas? My '01 AR 166 2.4jtd 103kw CF3 engine doesn't have turbo boost. I recently changed the head gasket and timing belt and since then there is no boost. There's no errors on diag and engine revs normally but it drives like ordinary diesel. Checked the vacuum hoses of the turbo and they are all ok.

 

[DavidAlfa166]

Check the MAP sensor on the intake manifold. If the connection is loosen, it may cause that problem.
It's very easy to find, in the middle of the manifold you'll see a black sensor tightened with only one screw, that's it.