Alright fellers, seems to me that I had the dreaded fuel system relay crap happen to me recently, but I can't be sure... About 4 days ago I was cruising down the freeway doing about 75, and my bike throws the Check Engine light on, and the motor winds down, no more throttle. I shift down two gears, get in the right lane and it cuts out completely. So I ran the Diagnostic codes and came up with the following.

P0261 Front Injector Open/Low EFI
P0263 Rear Injector Open/Low EFI

After that, my buddy and I loaded the bike in his truck, and took it home where it now sits. Now, I have not tried anything like swapping relays, I just started doing research. It sounds like this could be the issue... If anyone has any suggestions, I'd appreciate it. Being bikeless is a feeling I do not like.... Needing some suggestions guys... Thanks!

PS my bike is a 2009 Sportster 1200 Custom.

 

So...

This EXACT event happened to me the other day.

Id done a few electrical mods on my bike in the recent past.

Make sure the Neg terminal on your battery is snugged down.

Thats all I got.

 

As with all EFI bikes, check battery connections and voltage.

 

Start by checking the fuses and swap the relays. Check for corrosion on the relay and fuse contacts. As far as relays, I always carry a spare one tie wrapped in the fuse box area because when they go your done for the day on the side of the rode.

 

Well I got new relays installed, and put dielectric grease on em, and still no luck. Won't start. So i checked my battery terminals made sure everything was tight, and still nothing. just that annoying click. So then i hooked her up to some jumper cables, and she would crank and crank, but wouldn't turn over. But here's the weird thing, the entire time, I never once heard the fuel pump prime. I never heard it make that whirring sound it usually does... Is it a bad battery? A bad fuel pump? I'm out of ideas

 

Did you try to jump off of a car? If so, your battery is prob toast.

I recently did that and fried my battery... like a dumb**... yea yea

Another stupid thing Ive done and seen is trying to start the bike without flipping the "run" switch to "on."

Its gotta be something simple.

That big fuse inline from the battery is ok?

 

Get a Factory Service Manual and a Multimeter. Dont leave the car running while trying to jump it or it will ruin the battery or other parts. So then i hooked her up to some jumper cables, and she would crank and crank, but wouldn't turn over. If its cranking its turning over, if its clicking its not.

 

Yeah I tried to jump it off of a running truck, and I'm hoping the battery isn't toast, but I'm going to pull it out and have my local shop test it.

I did look at the other fuses and relays in there was white powdery stuff in there and a bit of corrosion, but not too bad. How do I clean that? And should I replace all the other fuses etc?

Now, how exactly do I test it with the multimeter and the Service manual? I'm not familiar with EFI since I've always had carburetor'd bikes.

 

Jump starting from a car will not harm the battery on the bike (on modern bikes with electronic devices, don`t start the car engine).

 

Manual from HD Dealer or Ebay ( get the HD one) You can get a meter online .
(Amazon ect.) U Tube has lots of videos on how to use it. You can check your battery and
engine sensors.