could any body help me with my problem car. I broke down in the car. cranks & will start for a few secs than stalls. checked fuel filter OK, check fuel pressure at the rail OK, Clamped off the return line & the car ran OK. So I replaced the fuel pressure regulator but this did not solve my problem.I had vacuum to the reg so its not that . Im starting to think it may be electrical? or if anyone could help me with a 6 cylinder wiring diagram or some trouble shooting info would muchly apprciated.thanks. :?