Can a fuel pressure regulator cause a no start?
Can a fuel pressure regulator cause a no start? A bad fuel pressure regulator can create a difficult to start or 'no start' engine. If the ECU can't measure the excess fuel coming through the fuel pressure regulator vacuum line, it will usually cause the engine to run rich (too much fuel). What causes the fuel pump to not start? The fuel pump is running and delivering normal pressure to the engine But, with all that working your engine still will not start. So, the most likely cause, is that the fuel injectors are probably not opening. The (PCM) uses...