Thread:

fuel pressure switch?

Who makes a low fuel pressure switch that when pressure drops it will make contact to turn on a idiot light. The No2 switch is opposite and the oil pressure switch from holley seemed to work but for one time? I think possibly the merc-cruiser switches but not sure?

Look at Summit, etc. for a Fuel Pressure Safety Switch....I'm pretty sure that's what you're looking for.

Time to step up to the 21st century. Gauge with a warning lite, and your can wire a larger warning lite into it.
LINK: Auto Meter fuel gauge

Originally Posted by gn7

Time to step up to the 21st century. Gauge with a warning lite, and your can wire a larger warning lite into it.
LINK: Auto Meter fuel gauge

Thanks Bob, but its not my ride, it is for a customer. He does not want to cut another hole in the dash for a gauge. He put in a LED light where a toggle switch was and I was looking for a normally closed switch below 4-5 psi and open above to turn the light on when it drops below that threshold and light off when above there..

I understand. I was messing with you anyway. That gauge is 225.00!!!
The safety switch for a NOS system won't work because most OPEN with pressure drop, not close.

Will 5lbs work. It has terminals for N/O and N/C.
LINK: Holley pressure switch

Damn sideways pics, here is what it looks like.

Will this work?
LINK: Quickcar switch

LINK: Summit Quickcare 61-730

Bob I got to say, Thank you! DAMN I have called Summit and told them what the switch needs to do and they cant find it, they sent me the No2 switch that was backwards and Vic Hubbards sent me the Holley switch which ws wrong too, and here you find it and give me the part number.. I am gonna order it tomorrow.

Ah sucks. No need to applaud........just throw money.

Glad could help. Yes, NO² switch OPEN on pressure drop.
Holley makes a switch that has both open and close terminals, but it big and ugly and switches at 5lbs. Too close to running pressure.

I still think he should have popped for the 225.00 fuel gauge

If he just cut a hole and installed a fuel pressure gauge it would be all good, but with how nice the boat is already I don't blame him. I told him about the light and installed the Holley Switch on the NC side which is closed during the start up only (5psi) and open above that and it worked one outing and failed on the second, it is an oil pressure switch but I used it for fuel which shouldn't have made a difference but it failed.