GREEN relay

[318isturbo]

hi all

i need to find out what the green relay on the bulk head controls
i no the white one controls the dme and injector's
does the green relay only control the fuel pump

if anyone knows could you please let me no

thanks

[rubber_duck89]

from what i can gather the green one is the main control relay the fuel pump relay is black im told.......someone more helpful will be along in minuite

[318isturbo]

on mine its the white relay which runs the mains

[318isturbo]

no one got an idea

[318isturbo]

that im not sure to be honest

[318isturbo]

5 pin relay

[Brianmoooore]

Original DME relay on an E30 is white. Modern replacements are a funny green colour.
Fuel pump relays were orange, replacements may be blue.

[Brianmoooore]

You can't even go by their relative positions to each other, either, as their bases are easily unclipped, and can be replaced in different places.

[318isturbo]

thanks guys my IS has no o2 sensor i will check the wires i gave bmw the part number white is dme and green is for fuel but would it only run the pump or does it work on any other electric's on the car
it keeps blowing the relay after a few weeks it has a uprated walbro fuel pump possible the wiring maybe shot lol

[Brianmoooore]

What do you mean by "blows the relay"? The relay is rated at four times the fuse and associated wiring.

[318isturbo]

well if i was to put a new relay on tonite it would be fine then after about a week it will start to play up like the fuel pump will stop sending fuel to engine every now and then
when it happens it's so random mainly on idle not under load when it goes to die ill throttle it to keep it running but it draws in air but no fuel so will cut out faster
and will start up again straight away im 90% sure its fuel pump related im wondering if it's the pump it's self or the extra load needed on boost is messing up the relay over time