fuel pump relay to oil pressure switch
Turbo Mini Forums

Hi all,

im sure i have seen a diagram (think this was by tom f) of the fuel pump relay to oil pressure switch.. i have searched and cant find it!!

cheers.

I think I posted my half ass one in the how two, bare wit me, ill find it?
Shane

Ta DA! Quicker to find pic than thread.
Shane

Hi,
This way is 50% cheaper



Cheers,
Gavin :)

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would it be an idea to kill ignition and fuel supply with the inertia switch, worst case is massive lean out and melted piston from starvation?
Shane

if you crash, last thing you'll be worrying saboult is melted pistons,

its just to stop fuel pissig over te engine

cheers shane / Gavin

the one i have is as per Gavin's diagram

however..

i crank, pump comes on

car fires up pump goes off.. pressure gauge shows oil pressure.

i had a similar issue where 87 and 87a were round the wrong way but this is no longer the case (the pump come on before the crank over)

any ideas?

cheers

Edited by MarkGTT on 19th Jun, 2009.

I was thinking more track day, clipping the curb at an apex and activating the inertia switch

good point, it woul be likly to trigger then.

fixed the issue.

had the oil pressure wire and the crank feed round the wrong way.

im a spaz when it comes to wiring!

fingers crossed you make it keans tomorrow dude, just take it easy and don't get tempted to rag it till we get the wideband rigged up!

I'm struggling to work out what Relay 1 does? it seem redundant to me.

relay 1 is a feed from the batery, its switched by the key, it could be runstraight from the key, but in this case the key just provides the curent (20mA) to swith the relay coil, the relay carrys the pumpo current

I don't have relay 1 in my circuit. I just use the oil pressure switch to earth the relay. If there is not enougth residual fuel to fire the engine it only takes a few seconds of cranking for the oil pressure light to go out anyway.

Own the day