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  #1 (permalink)  
Old 10-06-2018, 09:10 AM
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Location: Bristol, Uk
Bike Year, Make, Engine: BIG BEAR CHOPPERS GTX
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Question No spark or electric fuel pump after crash

Hi all I have a Big Bear Chopper GTX 2009 , that I’m going to restore,
As it been dropped and slid down the road.
But I thought I would fire it up before dismantling, problem is
There is no spark and electric fuel pump is not working , but works when the relay is pressed manually after opting the plastic case.
I have changed relays, new battery ��
Inspected all wire and connectors all are ok looking like new
Suspected it was the tilt sensor but the computer program I’m using tells me that it in the run position. And There are no other codes showing.
The engine is a S&S and all the injection and electronics are S&S
It has a VFI-Delphi ecu 55-5069
Tried ignition on off on and three times and five ��
Any help with this would be very much appreciated
Thank you all
Alex

Last edited by Alex1960; 10-06-2018 at 09:13 AM.. Reason: Extra information
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  #2 (permalink)  
Old 10-06-2018, 06:15 PM
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Alex, im sure you'll get some help here shortly. You might also try calling S&S, they're pretty good about helping customers...ymmv

Good luck
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Old 10-06-2018, 06:42 PM
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have you tried unhooking the battery for an hour just to clear any history in the ecm.
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  #4 (permalink)  
Old 10-07-2018, 04:44 AM
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Thank for the advice, I have put a new battery on, the bike has been sitting for a year or two with out one, thanks again ����
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Old 10-07-2018, 05:08 PM
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If you can depress the full pump relay manually, how hard is it to get to the 12v wire to the relay and trace it back? Perhaps it goes to the same connection as the coils..which may be a breaker or fuse...or switch..Either one of those would be a good starting point..coils or fuel pump relay.....sounds like both of those would hook to ignition switch.....break out the old volt meter..
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Last edited by Shovel52; 10-07-2018 at 05:11 PM..
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  #6 (permalink)  
Old 10-08-2018, 10:23 AM
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Thank you

Hi thank you for your suggestions, I will be trying the voltage meter again later tomorrow, I have put a volt meter, but no luck as it seems like the power to everything is coming from the ECU, in not a bright spark on fuel injection and electronic ignition, and wish I had the carb bad pints back, showing my age now lol.
I was hoping I missed something out that would cut the power to the pump and coils

Love the bikes

Thanks again
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  #7 (permalink)  
Old 10-08-2018, 01:35 PM
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I'm not 100% sure but if the electrical system is like Harleys, the system relay is white or grey and is fed by a 5v supply from the ECM, so if you've replaced it with a 12v relay it wont work.
It's only the coil of the relay thats 5v, the switching side is 12v.
Also the coils, front & rear injectors, front & rear ACR's (automatic compression release) and fuel pump are all fed from the 12v side of the relay.
The fuel pump is on the same circuit but protected by a 15A fuse after the coils, front & rear injectors, front & rear ACR's.
The wire from the relay to the the coils, front & rear injectors, front & rear ACR's and then to the 15A fuse is Yellow with a Green trace.
The wire from the fuse to the fuel pump is Orange with a Grey trace.

I found a wiregram that might be some help if you don't have one but it's a Harley one so your wire colours might be different.



Hope this helps.

If you want me to send you a JPG of the diagram PM me your email and I'll ping it over to you cos that image above is a waste of time when you big it up.


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Last edited by EdCase; 10-08-2018 at 02:02 PM..
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  #8 (permalink)  
Old 10-08-2018, 04:25 PM
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Thank you for the information,yes

Thank you , if you could send a jpeg, it would be helpfully.
Iíll be trying and testing tomorrow 👍🏼
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  #9 (permalink)  
Old 10-08-2018, 05:32 PM
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Jpeg and a PDF file sent matey, let us know how you get on
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