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86 SEI Fuel pump Nightmare - Printable Version

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+--- Thread: 86 SEI Fuel pump Nightmare (/showthread.php?tid=11068)



86 SEI Fuel pump Nightmare - Serj - 06-02-2020

Hello all, I am new to the wings and to this forum and I decided to start with a complicated girl

My 86 SEI is giving me some headache and maybe some SEI/LTD owners can shine a light on this case

I bought it as a non runner, replaced the dead alternator, no start, the cruise control light on the dash always on, no signal from the ECU lights either,
So I went the tested it output voltage arriving to the pump, only 7v applied 12v from an external source and the pump ran, pushed stared and the bike started right away!
The only thing left was to clean the contacts, replace the dog bone fuses, check all the relays ( all are fine) and last time I checked the power at the pump and got the 12v back!
went to bed and the next day, no power at the pump at all!
here is what I did

tested for power from the battery to the fuse box and its getting 12v alright
tested all the relay sockets and they all are getting power but the relay socket is not getting any
ECU doesn't show anything
The bike won't start anymore, even with 12v external applied to the pump making it run.
Checked the Grounds, All fine, the cruise control light went off

If somebody knows anything like it please let me know, I have researched a lot but every case is a new case so I thought about asking around
thank you in advance!