I have 1978 xj6 with twin carbs, would anyone have wiring diagram for fuel pump system or know the location of fuel pump relays.

 

Welcome to the forum kev53,

I've moved your question from UK & Eire Region to XJ6 Series I, II & III forum. Members here with the same model will be able to help.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

Welcome to the forum. I have no doubt you will find the enthusiasts here helpful.

That said i dont recall a fuel pump relay on my 76. There is a pair of white wires that come off the tank selector switch run over to small fuel pump located inside of each fuel tank. There also is a saftey inertia switch found on the right hand or US passenger side A pillar that interueps current in the event of a crash. If trippped it can be easily reset.

 

I have checked wiring at the pumps found it ok, inertia switch not tripped however if i put 12 volt to wire at inertia switch the starter engages, i would be surprised if there is not relays controlling the fuel pumps.

 

I just checked the wiring diagram and the white green and white purple wires off the tank selector switch go directly to the fuel pumps. No relay.

 

Thanks for that i will check wiring from switch to pumps as everything else seems ok