Originally Posted by barry123400

I agree yet the exhaust obstruction if there is not total as the engine still idles. There is little turbo impellor load at idle as well. The onset of an intake obstruction should not normally be as quick as his problem developed. The onset of a sudden exhaust restriction is not that uncommon though. Especially on 603s.

Very weak low pressure if any fuel supply to the pump might be the next avenue. The engine should have picked up revs with the wd 40 if that were the issue though.

Since I believe the car also starts up normally even though it will not pick up revs. That almost clears the injection pump of any major shift in timing I would suspect. So if it is not an exhaust restriction it may get quite interesting. It almost has to be the exhaust restriction.

I have also noticed that the two of us are frequently on the same wavelengths. I think you can teach me a thing or two over time.