Just because you are getting fuel flow from the return line doesn't mean it isn't restricted. You NEED to get a gauge setup on the car so you can find the source of the problem. I think you will find it to be either a resticted return line or a stuck Primary Control Pressure Regulater. The warm-up regulater is the control pressure regulater on the left valve cover and the primary control pressure regulater is on the side of the fuel distributer. If you assume the test you performed gave you 2 liters of fuel when you should have had 3 then you would know with certainty that the line is blocked. Unfortunatly I do not know the return flow rate so I don't think that is a valid test. If the system pressure is too high it can only mean that the Primary control pressure regulater either isn't working or the return line is restricted or blocked. I think the regulater you took apart is the control pressure regulater (warm-up regulater) and I don't think it is the source of your troubles. Failure of this component usually results in hard cold start conditions and trouble with acceleration or fuel enrichment. David Teitelbaum vin 10757 --- In dmcnews@xxxx, Soma576@xxxx wrote: > Hey All, > > today i took off my control pressure regulator and opened it up. it appears > to be quite clean, and the screen is clear. i only unscrewed the bottom four > screws and checked it in there. i blew air thru the vacuum nipple on the > > Andy > > Soma576@xxxx > 1982 DeLorean DMC-12 VIN#11596 > Fargo, ND 58102 > > > [Non-text portions of this message have been removed]