Some fuel pressure questions - '86 560SL

[rgnprof]

I have been chasing down a WARM start problem for several months - car will start up warm, but it will not go anywhere when you press on the gas pedal - and if I don't let off the gas it will just stall out. Sounds like gas is boiling in the tank...idle is very rough, chugging along for several minutes. Once it gets past this, car runs great.

Anyway, I have some simple fuel pressure test results questions...tested the fuel pressure and all my readings were spot on (see my post on the Tech board), and no leakdown noted. The system held pressure above 3.0 bar for hours (manual says it must hold for 30 minutes).

Questions: Does this rule out the fuel pump check valves and the fuel injectors - since I'm not losing pressure? Does it rule out a bad gas cap? (I replaced the accumulator, thinking it was the obvious problem...

ryan