Fuel pump relay

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TerryG
Posts: 6754
Joined: Wed Jan 05, 2011 1:54 pm
Location: East Midlands

Fuel pump relay

#1 Post by TerryG » Wed Aug 31, 2016 9:29 am

After putting a battery in my RR for the first time in 6 months and trying to start the car, getting no life at all then 4 hours of electrical fault finding. I have found that my "master relay" is dead.
After cleaning 20 years of accumulated dirt off the side of the relay i discovered it has 2x pin 87 which are connected together.
A regualr 5 pin relay will fit BUT doesn't work.
This means that rather than a £2 relay it needs a £18 one (or a bodge which is what i have done temporarily).

Is a relay with 2x pin 87 a normal thing for any application other than Land Rover confusing people?
Understeer: when you hit the wall with the front of the car.
Oversteer: when you hit the wall with the back of the car.
Horsepower: how fast you hit the wall.
Torque: how far you take the wall with you.

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JPB
Posts: 10319
Joined: Fri Jan 07, 2011 3:24 pm

Re: Fuel pump relay

#2 Post by JPB » Wed Aug 31, 2016 10:18 am

:idea: Are both pin 87s marked simply that, rather than 87A?
J
"Home is where you park it", so the saying goes. That may yet come true.. :oops:

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TerryG
Posts: 6754
Joined: Wed Jan 05, 2011 1:54 pm
Location: East Midlands

Re: Fuel pump relay

#3 Post by TerryG » Wed Aug 31, 2016 10:48 am

They are indeed. i'll post a pic of the relay cover later if you are curious, a quick google and this looks like a more modern version of the corroded looking aluminium item in the car:
relay.jpg
relay.jpg (17.74 KiB) Viewed 2157 times
87 and 87 are connected together, the suffixed "a" is AWOL.

Conveniently the fuel pump and master relay are the same so i have a choice of injectors that fire and a starter that turns OR a running fuel pump (or both with the aid of a bit of wire and some spade terminals)
Understeer: when you hit the wall with the front of the car.
Oversteer: when you hit the wall with the back of the car.
Horsepower: how fast you hit the wall.
Torque: how far you take the wall with you.

User avatar
TerryG
Posts: 6754
Joined: Wed Jan 05, 2011 1:54 pm
Location: East Midlands

Re: Fuel pump relay

#4 Post by TerryG » Wed Aug 31, 2016 11:25 pm

Just in case you are interested in this bizarre thing John, It's Bosch P/N: 0332014112 for the one in the car, 0986AH0602 for the replacement or Land Rover P/N: AFU2913L
Understeer: when you hit the wall with the front of the car.
Oversteer: when you hit the wall with the back of the car.
Horsepower: how fast you hit the wall.
Torque: how far you take the wall with you.

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