Question about 2003 Harley Davidson FLSTF Fat boy
When ignition is turned on you can hear the fuel pump running. I checked all fuses, indicator lights show OK.
Hi Ron, and the usual suspects are:
1. Severely discharged or damaged battery.
2. Loose, corroded or broken battery cable.
3. Alternator not charging or below normal rates.
4. Failed ignition coil, ignition/electronic module.
5. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor.
6. Faulty ignition switch.
7. Water or dirt in fuel system, carburetor or filter.
8. Fuel tank vent system plugged or gas cap not venting.
9. Fuel tank empty.
10. Fuel valve vacuum line broken or carburator vent line closed off.
11. Restricted, blocked or kinked fuel line.
12. Failed fuel pump, pressure regulator and or fuel injectors.
For a prime suspect please visit website below and good luck:
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley...
Posted on Jun 18, 2015
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Posted on Jan 02, 2017
SOURCE: No Power
I would begin by checking the battery terminals and the battery cables. Take it all a part and clean everything with emery cloth and then a fine coating of vaseline. Then trace each cable back to it' other end and do the same thing.
Posted on Apr 11, 2009
I would not replace anthing yet! An intermittent light could mean that you simply have a wiring short! Get someone to help by watching your engine light, start your bike and do a wriggle test oun your wiring harness. You may find it to be no more than a simple wiring problem at the connector. You said there are no stored codes and the bike is running fine? No missing of sputtering? If not I would think the problen is no more than a possible temporary short in the wiring at the sensors
Posted on Jul 14, 2009
You have a couple of electrical checks you can do first. Yes this will be somewhat painful. The other item is if you go through these troubleshooting steps you won't be happy if your fuel pumps DOA.
First replace your fuse, I know it may look good, but replace it anyway. Next check your relays, then under your speedo console there is a connector on the tank. If this connector has been unplugged it is very easy to bend the pins inside, check for that. Check for power to the pins. If you have power and still no working pump, then it is an entirely different task and somewhat costly.
A bad fuel pump is not a real fun replacement sometimes it is however not a bad idea to replace the whole ball of wax which can run you about $400 for parts at retail. If you conclude your pump is bad just post with your year and model. Hope this helps,
Posted on Aug 20, 2009
SOURCE: 2003 FLSTFI FatBoy won't start
Check this link, I found many other posts on the web with the same code thrown, this was the best answer...
Posted on Jun 07, 2010
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