No power to fuel pump

[tjdionson]

1996 Nissan 240sx with sr20det swap

Issue: Fuel pump is hard wired to the battery via relay and one day all of a sudden loss power. Things I tried
1. Checked fuses
2. Fuel pump works when directly powered via battery
3. Replaced relay with new one
4. Checked my connections and inspected the signal wire (b/y wire)
5. ECU checked by Martin (Rs Enthalpy) found to be in good condition. Tested on another car and works.

Pump does not prime/turn on when car is on position. Is there another relay or something else I can check? Car has been down for several days and would love to get her back on the road. Thanks in advance!

[crash n' burn]

you checked the wiring on the top hat? You may have a semi-broken connection that's requiring more amperage than that relay can provide.

Show a picture of your setup.

[tjdionson]

Originally Posted by crash n' burn

you checked the wiring on the top hat? You may have a semi-broken connection that's requiring more amperage than that relay can provide.

Show a picture of your setup.

So i actually rewired my Walbro fuel pump directly to the relay. Only connection the the top hat are the fuel gauge, low fuel light. I checked my wiring and all looks solid

[xpinoyxmk]

My fuel pump works intermittently as well. I assumed the fuel pump was just on its way out. I checked and fixed all connections without pulling the top hat off. Walbro 255, relay setup.

Almost same symptoms. Key to ON position, no fuel pump prime but if I keep trying, it'll eventually work.

If you figure out the issue, please post it here.

[tjdionson]

Well, at this point I think my issue might be the harness or a relay.. I think I might just end up running my pump to a toggle switch


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[tjdionson]

Sigh, simplest issue? don?t assume all wiring is good until carefully inspected? had a broken power wire to the relay


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