jim L wrote:
> This isn't actually a honda problem, but I hope someone here can give me
> some insight into what is happening & why.
>
> I have a 93 Nissan pickup w/ electric fuel pump in gas tank. When it works,
> it works fine.. until you shut engine off. It doesn't quit when engine is
> running - regardless of how long it runs - 1 mile or 50. but after turning
> engine off, fuel pump may or may not run. If it doesn't, it won't work
> again until it sits a day or so.
> Based on the schematic, I thought the problem was with the ECU to the fuel
> pump relay, so I pulled the relay & jumped the circuit. It seemed to work
> fine - started it several times over next couple of days - even let it run
> & get up to operating temp, shut off & restarted fine.
>
> Then drove it about 5 mi., and it wouldn't start afterward. Still wouldn't
> start 3 hrs later, but started & drove it home about 20 hrs later. Turned
> off & wouldn't start.
>
> I guess I need to replace fuel pump, but I'm baffled as to why pump works
> fine and continues to run as long as engine is running. It seems like a bad
> pump would quit on the road instead of only when engine is turned off.
>
>

honda have been plagued by the solder on their main relay cracking. and
the symptoms are exactly the same as you describe. [if nissan use
mitsuba relays,] go to tegger.com, check out the resolution, then see if
it works for you.