Question about 2003 Harley Davidson FLSTF Fat boy

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2003 fatboy starts runs for about 3 seconds and quits. Alarm is off, fuel is good, batteries replaced in key fobs. Whats wrong?

When ignition is turned on you can hear the fuel pump running. I checked all fuses, indicator lights show OK.

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  • Harley Davidson Master
  • 39,917 Answers

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

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 10865 Answers

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

  • 2 Answers

SOURCE: Engine cuts of after it runs about 3 or 4 min. If

what kind of machine?

Posted on May 08, 2009

  • 50 Answers

SOURCE: 2003 Wideglide check engine light (bad TSSM?)

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

  • 269 Answers

SOURCE: Road King fuel pump will not prime?

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,


JP

Posted on Aug 20, 2009

  • 623 Answers

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...

http://www.fixya.com/motorcycles/t4595026-engine_code_came_up_ppu_82883

Posted on Jun 07, 2010

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2 Answers

Key fob won't work even after changing battery, can only open and lock car using key, alarm won't shut off and keeps ringing


retry replacing battery new doesnt mean cant be defective if it is good than fob needs a relearn different cars have different relearn that you can perform but if the fob has other features such as start that will have to be done at dealer ----
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Hi Anonymous, and the usual suspects are:
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2.Engine Stop switch in the OFF position.
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4. Bank Angle Sensor tripped and Ignition/Light Key Switch not cycled to Off and then back to on.
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For a prime suspect please visit website below and good Luck.
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2003 Fatboy Electrical Issues


Hi Dee, and the usual suspects are:
1.Ignition/Light Key Switch not in IGNITION position.
2.Engine Stop switch in the OFF position.
3.Discharged battery, loose or corroded connections check negative cable at BOTH ends. (solenoid chatters).
4. Bank Angle Sensor tripped and Ignition/Light Key Switch not cycled to Off and then back to on.
5. Starter control circuit, relay or solenoid faulty.
6. Electric starter shaft pinion gear not engaging or over-running clutch slipping.
7. Security alarm not disarming
For a prime suspect please visit website below and good Luck.
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1 Answer

1993 HD fatboy won't start. has spark and fuel and turns over


Hi Leon, and the usual suspects are:
1. Fuel tank empty
2. Fuel supply valve turned off.
3. Fouled spark plugs.
4. Engine flooded with gasoline as a result of over use of enrichner.
5. Fuel valve or filter clogged.
6. Vacuum hose to automatic fuel supply valve disconnected, leaking, or pinched.
7. Discharged battery, loose or broken battery connections.
8. Loose wire connection at coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, spark plug cable connections loose,
or cables connected to wrong cylinders.
10. Ignition timing incorrect due to faulty ignition coil, ignition module, or sensors " Manifold Absolute Pressure" "Camshaft Position Sensor" "Crank Position Sensor" "Brake Apply Sensor
11. Engine lubricant to heavy ( winter operation )
12. Sticking or damaged valves or push rod wrong length.
13. Primary cam sproket spline sheared or missing spacer.
14. Security alarm system not disarming.
Good luck

Jan 05, 2013 | Harley Davidson FLSTF Fat boy Motorcycles

1 Answer

Replaced battery still bike wont start


Hi Calixto, when checking for spark the CKP needs to measure the compression bump in order to send the correct signal to the ICM/ECM so always check for spark with either a third plug grounded or lift the end of the plug boot 1/2 " off one of spark plugs that are in the head. and the usual suspects are:
1. Fuel tank empty
2. Fuel supply valve turned off.
3. Fouled spark plugs.
4. Engine flooded with gasoline as a result of over use of enrichner.
5. Fuel valve or filter clogged.
6. Vacuum hose to automatic fuel supply valve disconnected, leaking, or pinched.
7. Discharged battery, loose or broken battery connections especially the "NEGATIVE" cable to the frame.
8. Loose wire connection at coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, spark plug cable connections loose,
or cables connected to wrong cylinders.
10. Ignition timing incorrect due to faulty ignition coil, ignition module, or sensors " Manifold Absolute Pressure" "Camshaft Position Sensor" "Crank Position Sensor" "Brake Apply Sensor
11. Engine lubricant to heavy ( winter operation )
12. Sticking or damaged valves or push rod wrong length.
13. Primary cam sproket spline sheared or missing spacer.
14. Security alarm system not disarming.
For a primary suspect please visit the website below. Good luck and have nice day.
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley... Set Change Override Transport Harley Security Alarm PIN Code No Key Fob...

May 24, 2012 | 2003 Harley Davidson FLHT Electra Glide...

1 Answer

My 2005 fatboy lights come on, horn works, blinkers work, head light works, but why won't my bike start


Hi Melody, when checking for spark the CKP needs to measure the compression bump in order to send the correct signal to the ICM/ECM so always check for spark with either a third plug grounded or lift the end of the plug boot 1/2 " off one of spark plugs that are in the head. and the usual suspects are:
1. Fuel tank empty
2. Fuel supply valve turned off.
3. Fouled spark plugs.
4. Engine flooded with gasoline as a result of over use of enrichner.
5. Fuel valve or filter clogged.
6. Vacuum hose to automatic fuel supply valve disconnected, leaking, or pinched.
7. Discharged battery, loose or broken battery connections especially the negative cable at "BOTH" ends
8. Loose wire connection at coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, spark plug cable connections loose,
or cables connected to wrong cylinders.
10. Ignition timing incorrect due to faulty ignition coil, ignition module, or sensors " Manifold Absolute Pressure" "Camshaft Position Sensor" "Crank Position Sensor" "Brake Apply Sensor
11. Engine lubricant to heavy ( winter operation )
12. Sticking or damaged valves or push rod wrong length.
13. Primary cam sproket spline sheared or missing spacer.
14. Security alarm system not disarming.
For a primary suspect please visit the website below. Good luck and have nice day.Harley Diagnostic Codes 04 to Present Set Change Override Transport Harley Security Alarm PIN Code No Key Fob...

May 01, 2012 | 2005 Harley Davidson FLSTFI Softail Fat...

1 Answer

What troubleshooting can I do when the bike won't start and the security lights are flashing? There is nothing wrong with the key fob.


Hi Anonymous, when checking for spark the CKP needs to measure the compression bump in order to send the correct signal to the ICM/ECM so always check for spark with either a third plug grounded or lift the end of the plug boot 1/2 " off one of spark plugs that are in the head. and the usual suspects are:
1. Fuel tank empty
2. Fuel supply valve turned off.
3. Fouled spark plugs.
4. Engine flooded with gasoline as a result of over use of enrichner.
5. Fuel valve or filter clogged.
6. Vacuum hose to automatic fuel supply valve disconnected, leaking, or pinched.
7. Discharged battery, loose or broken battery connections especially the negative cable at "BOTH" ends
8. Loose wire connection at coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, spark plug cable connections loose,
or cables connected to wrong cylinders.
10. Ignition timing incorrect due to faulty ignition coil, ignition module, or sensors " Manifold Absolute Pressure" "Camshaft Position Sensor" "Crank Position Sensor" "Brake Apply Sensor
11. Engine lubricant to heavy ( winter operation )
12. Sticking or damaged valves or push rod wrong length.
13. Primary cam sproket spline sheared or missing spacer.
14. Security alarm system not disarming.
For a primary suspect please visit the website below. Good luck and have nice day.
Set Change Override Transport Harley Security Alarm PIN Code No Key Fob...
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1 Answer

I have a 2003 fuel injected fatboy.. Where is the fuel vacuum line. Bike turns over but will not run.


Hi Cartercg, the fuel vacuum line is for carburetors only, when checking for spark the CKP needs to measure the compression bump in order to send the correct signal to the ICM/ECM so always check for spark with either a third plug grounded or lift the end of the plug boot 1/2 " off one of spark plugs that are in the head. and the usual suspects are:
1. Fuel tank empty
2. Fuel supply valve turned off.
3. Fouled spark plugs.
4. Engine flooded with gasoline as a result of over use of enrichner.
5. Fuel valve or filter clogged.
6. Vacuum hose to automatic fuel supply valve disconnected, leaking, or pinched.
7. Discharged battery, loose or broken battery connections especially the negative cable at "BOTH" ends
8. Loose wire connection at coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, spark plug cable connections loose,
or cables connected to wrong cylinders.
10. Ignition timing incorrect due to faulty ignition coil, ignition module, or sensors " Manifold Absolute Pressure" "Camshaft Position Sensor" "Crank Position Sensor" "Brake Apply Sensor
11. Engine lubricant to heavy ( winter operation )
12. Sticking or damaged valves or push rod wrong length.
13. Primary cam sproket spline sheared or missing spacer.
14. Security alarm system not disarming.
For a primary suspect please visit the website below. Good luck and have nice day.
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley... Set Change Override Transport Harley Security Alarm PIN Code No Key Fob...

Aug 25, 2010 | 2003 Harley Davidson FLSTFI Fat Boy

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