Originally Posted by
Mark Shead
Stop messing around with what you have start again.
Buy a 7psi pressure switch wire to new relay and have it coming on with boost. Or just wire to switch and have on all the time.
If you have a good quality pump run it all the time if it was the cheap crap type they used to sell have it on pressure.
Mark
just want to get what’s fitted working, Do you know what psi the standard is? And more importantly is it wired to anything else? Ie Ecu or something?
i suspect the original is faulty as it’s a new pump and new relay