WHERE IS THE 1992 FUELPUMP RELAY


Information and questions on GL1500 Goldwings (1988-2000)
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Dans Honda
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WHERE IS THE 1992 FUELPUMP RELAY

Post by Dans Honda » Sun Mar 15, 2020 1:43 am



WHERE IS THE 1992 FUELPUMP RELAY LOCATED



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AZgl1800
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Re: WHERE IS THE 1992 FUELPUMP RELAY

Post by AZgl1800 » Sun Mar 15, 2020 3:33 am

IIRC,
it is Relay #6
the diagram is not all that easy to determine where it is, looks like most of them are at the rear fender

attached is a drawing I made many years ago of the Fuel Pump circuits




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DenverWinger
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Re: WHERE IS THE 1992 FUELPUMP RELAY

Post by DenverWinger » Sun Mar 15, 2020 6:08 am

There were many changes in the electrical systems of the 1500 after initial release in 1988, '88 & '89 are mostly the same, lots of changes from '89 to '93 but from 1993 on the electricals remained pretty much unchanged.

1988 and 1989 most definitely have a fuel pump relay, but somewhere between 1990-1993 Honda redesigned the Ignition Control Unit, did away with the fuel pump relay, and started sending the fuel pump power directly from the ICU.

I'm pretty sure the 1992 has no fuel pump relay and the pump gets power directly from the ICU. If the fuel pump output on the ICU has failed, the ICU is repairable.

What seems to be the issue?
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

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ct1500
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Re: WHERE IS THE 1992 FUELPUMP RELAY

Post by ct1500 » Sun Mar 15, 2020 6:51 am

Dans Honda wrote:
Sun Mar 15, 2020 1:43 am
WHERE IS THE 1992 FUELPUMP RELAY LOCATED
1990 and newer models do not have a fuel pump relay, power is direct from ECM.
Local and need repair help with your 1500, Valkyrie or ST please click contact
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bluthundr31
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Re: WHERE IS THE 1992 FUELPUMP RELAY

Post by bluthundr31 » Sun Mar 15, 2020 2:08 pm

The '88 '89 models had a relay below the trunk for the fuel pump that would power the fuel pump once the key was turned on, , you could hear the pump "prime" for about 2 seconds. From '90 onward, they used the ECM (electronic control module) to power the fuel pump and there was no "prime" sound when the key is turned on, , ,the pump primed when the start button was pushed. Are you having trouble with the fuel pump? or are you having a "no start" condition?

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AZgl1800
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Re: WHERE IS THE 1992 FUELPUMP RELAY

Post by AZgl1800 » Sun Mar 15, 2020 3:21 pm

when I drew up that crude drawing that I posted, it was to show how simple it would be to use a Toggle Switch, DPST.

Hook the Center pole of the 3 terminals to the fuel pump B+ terminal,
Label one side 'Emergency ON' and that terminal goes direct to the Accessory fuse block... thus when switched to Emergency, the fuel pump is ON all the time, thus being able to Prime the carbs before you ever hit the Start Button.

Label the other outside terminal 'AUTO' and that goes to the ECM wire.


Now, in case of a problem that develops away from home, just flip it from 'Auto' to 'Emergency and ride on home....
then figure out what happened and the bike quits while you are a 1,000 miles from home.

.


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