Hi guys, have a 1995 dakota V8. It losses fuel pressure after sitting. Will crank for a long time, then will start when cold or sitting for about 45 min. I hooked up a fuel pressure gauge, 40psi running(normal according to manual), but will drop to about 5psi within 5 seconds, after I turn off engine. Cannot find any fuel leaks, I assume its the regulator,. How do i know for sure? Its mounted on the tank. Or could the injectors be leaking? (it doesnt flood after restart, so i dont think thats the case) Fuel pump sounds normal Thanx in advance for your help, wayne

Double start engine, hot or cold. Engine stumbles at upshifts (auto tranny). At idle engine lopes. Put on new idle air control valve, no change. But, noticed if i take the IAC off and hold my thumb over the hole, the engine speeds up and runs smoothly and keeps running smooth after i take my thumb off the hole? Changed the O2 Sensor. New spark plugs. New fuel filter. New fuel injectors. Fuel regular diaphram kit installed. The Throttle position sensor seems to be ok since the motor runs funny when we disconnect it. The EMC seems to be happy showing code 12. And it does record trouble codes ok when other components are temp. disconnected. 156 k miles. We are out of ideas, help help help !!!!! Hopeless Harry.