Quote:
Originally Posted by nigellazypostman
Checked tonight and have 90psi at the pipe going into the fuel pressure regulator but zero pressure in the actual fuel rail, surely this is pointing to a failure of the pressure regulator rather than the fuel relay as there is no fuel in the rail to be injected and to the best of my knowledge the relays fires the injectors, the pressure regulator has no electrical connection or link to the fuel injection relay. Totally appreciate any suggestions and clearly I don’t know what I am doing hence the question.
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I agree with your assessment here, that does sound to me like it's the regulator that's failed. However I have no experience of working with the fuel rail and regulator, just agreeing with your logic. If it were me I'd replace the regulator, even with a second-hand one if need be (they rarely fail so a used one is highly likely to be fine).
Cheers
