I was going to say fuel pressure sensor and also check wiring from sensor and wiring to SCV but then saw your comment about pressure dropping off under acceleration. This is screaming fuel supply issue to me. I'd do the fuel filter first and check the old one for contamination. As mentioned could be rusty pipes but also could be Diesel bug or fuel contamination of some other type. If the filter fixes it that may only be temporary and you may have to take the tank out to clean it.
Shaun
Message Thread
« Back to index | View thread »