No fuel pressure - could not hear fuel pump when key turned on. fuel pump replaced about a year ago. took connector off fuel pump. 12V to fuel pump on only fraction of a second to blue/yellow wire on connector when key is turned on then goes to zero. Is it probable that the fuel pump relay is bad? How do I get to the relay?
Might check the charging system, when the key is turned on it primes the pump only for a few seconds then when the engine starts the alternator takes over.
The fuel pump will only run for a few seconds ,untill the engine starts.And yes i think the relay is the problem ,check a manual to find its location . Or if it was me i would join the Subru forum free to join then ask on the forum .
SOURCE: 2000 Subaru Outback wont start.. no fuel.
Are your injectors firing into the engine? You can buy a test kit to double check that. Is there spark at the plugs?
I had the same problem sorta with my civic it turns out after doing timing belt water pump, and many gaskets i had a huge vaccum leak.
Also check your fuel lines to see if they are loosing pressure somewhere
SOURCE: 1988 subaru gl 1.8..no power to fuel pump
The blue wire changes to Blue/White. It gets power from the Fuel Pump Relay. Fuse number 11 is the power source. The relay is up under the dash panel, blue connector
Testimonial: "the colered relay info help greatly to locate!"
SOURCE: My 1997 Subaru Legacy wagon
It could be the relay, But I don't think you have one, most starters are direct wired from the key to a solenoid on the starter, If there is a relay, it is the big fuse box under the hood, and is just a electric switch, not subject to cold. It sounds more like the terminals are filthy and the contacts are not connecting. Clean off all the wires with a wire brush and scrub the terminals with it, get underneath the connections too. Where the battery cables connect to the lead terminals, If I was up there I would be plugging in my car at night to keep it warm. It will start right up in the morning.
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