I removed the entire manifold. The junction where the pipe joins the manifold was almost entirely jammed.
I tryed that , but still no solution . I will try to replace that "solenoid" . After that only left is EGR cooler . I really was hope that this cleannig manifold will solve ,and it was dirty ,expecially that lilte part that comes from EGR ... But still error ?I removed the entire manifold. The junction where the pipe joins the manifold was almost entirely jammed.
I replaced new egrRemove the EGR valve and clean it, if that doesn't work clean the cooler. If that doesn't work, it's almost guaranteed to be a sensor issue.
Likely the cooler then, its a complicated shape internally and would easily clog. You can probably clean it, but removing it is a pain in the ass.I replaced new egr
I cleaned complete intake manifold
Only left is cooler ? Only error on diag is p0401 intermittent .