"jim beam" <spamvortex@bad.example.net> wrote in message
news:SKidnSNLZsh3o33VnZ2dnUVZ_qLinZ2d@speakeasy.ne t...
> 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.

Hi Jim - thanks for the reply
I read Tegger's entry on the mitsuba relays and Michael's description of
what happens with a Dry
Solder socket. It's enlightning - but not encouragong - looks like i'll
have to drop the tank and pull the fuel pump. My best gestimate is that the
bad solder connection is somewhere whithin the fuel pump assembly. I have
power to fuel pump with my jumped circuit - so main relay isn't the
problem. I was hoping for an easier fix - but at least knowing how it
could happen is positive.

Jim