Subaru ej20 fuel pump relay

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Dazco
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Location: Sheffield. 1984 autosleeper trooper. 1.9 petrol called Jambo

Subaru ej20 fuel pump relay

Post by Dazco »

First off , apologies for not being on for a long time, not been using the van much this year at all.
Van has been laid up for a while following my shoulder opp and andrea having broken her arm just as mine was getting better .
Anyway the problem is as follows .
Tried starting the van but it just wouldn't fire , noticed a distinct lack of noise from the pump.
Bypassed the relay with 12 v straight from battery to pump and pump fired into life immediately.
So I changed the relay (056700-5260 denso ) for one which I knew worked from a while back .
Result, the same , no life in pump.
Checked power going to relay and have 12 v through yellow/silver wire ( switched via ignition) and perm 12 through larger red wire .however still no joy.
Checked for continuity through purple/ silver but nothing there.
If I put a bridge between the red and red/black the pump fired up.
Would this possibly indicate that the purple/ silver is not earthing correctly ?
At a bit of a loss
Thanks , daz
Auto sleeper fitted with EJ 20 subaru lump

multisi
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Re: Subaru ej20 fuel pump relay

Post by multisi »

My early ej22 fuel relay is earthed to the van body next to the ecu. I had the same no sound from the pump until the thin wire was earthed.
1992 red lle 2.2 subaru 1990 rhd caravelle 2.2 subaru 1986 california import vanagon

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Dazco
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Joined: 18 Dec 2011, 15:44
80-90 Mem No: 10544
Location: Sheffield. 1984 autosleeper trooper. 1.9 petrol called Jambo

Re: Subaru ej20 fuel pump relay

Post by Dazco »

I've checked continuity through the purple/silver wire which I think is the earth and it looks ok which is strange. Now wired through an independent switch so at least I can still use it. More checks required i fink . Thanks
Auto sleeper fitted with EJ 20 subaru lump

pkrboo
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Re: Subaru ej20 fuel pump relay

Post by pkrboo »

the fuel relay is switched on via the earth, so you need to check that. it comes from the ecu. put THE engine into test mode by connecting the green plugs together and then turning on the ign, you should hear the fans cycling and fuel pump priming alternately
1.6 CS Diesel DOKA

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Dazco
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Joined: 18 Dec 2011, 15:44
80-90 Mem No: 10544
Location: Sheffield. 1984 autosleeper trooper. 1.9 petrol called Jambo

Re: Subaru ej20 fuel pump relay

Post by Dazco »

:ok
Auto sleeper fitted with EJ 20 subaru lump

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