Sludge in manifold and oil in turbo??
 

I changed my injector seals on my 1.4tdci fiesta 07 plate, 23,000miles, and all went well.

I have thick oily sludge within my manifold pipes and have a little bit of oil within my pipe leading to the turbo.

My camshaft is clean.

The car chugs when deccelerating sometimes.

Any ideas?

Thanks