Fuel pump relay on/off intermitent

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magflip
MS/Extra Newbie
Posts: 9
Joined: Sat Jan 24, 2015 6:41 am

Fuel pump relay on/off intermitent

Post by magflip »

Hello guys!
Last Friday I tried to start my car that was stopped for some time. It worked usually for 10 or 11 months and after that start attempt can not turn it over.
When I tried to get it started, while the motor was cranking, I heard a strange noise (like a snap) and turned the key off. When I turned on the key again the fuel pump relay began presenting the problem to be turning on and off quickly (turns on and off in less than 1 second) in an infinite loop.
Initially I thought that the firmware could be corrupted (I use MS1 with HR-11) and re-flashed but the problem continues.
Measuring the battery voltage and has 12.25v.
The lambda sensor is also linked in this relay.
Does anyone have any idea what can be?
Video follows the example.

https://www.dropbox.com/s/8sz5fmyj2qa9d ... 8.mp4?dl=0
john.p.clegg
Running MSx/Extra
Posts: 558
Joined: Sat Jul 21, 2007 6:49 am
Location: Manchester

Re: Fuel pump relay on/off intermitent

Post by john.p.clegg »

Did I see a light on your dash flashing in-time with the relay?
How's your battery?

John
magflip
MS/Extra Newbie
Posts: 9
Joined: Sat Jan 24, 2015 6:41 am

Re: Fuel pump relay on/off intermitent

Post by magflip »

Hi John!
That light flashing is the oil pressure and it usually stays that way until the car is turned on and stabilized pressure.
I measured the battery voltage and the DVM indicated 12.25v.
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