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So I can be riding along, always at highway speeds and every once in a while the bike coughs. Just once maybe again later 20 minutes are so.
Not always. and that is it.
any idea what it is, I use 91 grade gas,usually from the same place. Its's a 2004 Road King trike.
thanks
Thats a tuff one to figure out, off the top of my head , with out a backfire happening I would guess a fuel problem :Shrug: Stop at a stealer and maybe a stored code might come up even though the ck eng light is off. Just a guess.
Sounds like a lean hiccup
What modifications do you have?
[size=3][B]I had a 2003 FLHRI that did the same thing since new.
It ended up being the ECM.
I put a tuner on it and there was no change.
I even put a tuner with O2 sensors and didn't make a difference.
Put a new ECM on it and never looked back.:Shrug:[/B][/SIZE]
thanks all
I have no engine mods that I can think up.
I don't know if it's too old to give out code info.--2004
[QUOTE=Sahuarita John;532162]thanks all
I have no engine mods that I can think up.
I don't know if it's too old to give out code info.--2004[/QUOTE]
If you just turn on the ign and a ck eng icon appears , than you got a plug in.
I had that in a vehicle a few times over the years......Just a shot in the dark here, Start the trike in a dark garage, In neutral cover the headlights to block the light, Once your eyes are adjusted to the dark, Rev the engine while staring at the spark plug wires and see if they are leaking [Arcing] Maybe even move them around a little...:Shrug:
Yes you can check for codes on a 04
Is this fuel injected or carb?
If it is carb, they have been lean TOO LEAN from the factory and will hiccup every now and then
This can be fixed pretty easy and cheap
John, have a look here
The following procedure will instruct in retrieving and clearing ECM Diagnostic Trouble Codes and TSM/TSSM codes through the Harley gauge cluster as well as a list of codes.
1- Turn Ignition switch to OFF & Run/Stop switch is to Run.
2- Push odometer reset button in & hold. For 2014 & newer touring models this will be the toggle switch on the left control mount.
3- Turn ignition switch to Ignition and release the odometer reset button. Background lighting should illuminate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate. The word "diag" should then appear.
4 - Push the odometer reset button once and you will see the selection menu "PSSPt" with the first P flashing.
5 - Each letter represents an area of the diagnostics module. The module that is flashing is the one you are going to check. To move from one letter (module) to the next, you push the odometer reset button one time. (from P to S to SP to t and back to P, etc.)
P = ECM/ICM(Electronic Control Module)[EFI] /Ignition Control Module[Carbureted])
S = TSM/TSSM (Turn Signal/ Security Module)
SP = speedometer
T = tachometer
6 - To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTC's the code will be displayed or the word "none" will appear if there are no DTC's. Push the odometer reset button again to view additional codes if they exist.
7 - Record the codes.
8 - If DTC's are not to be cleared, Press and release the odometer reset button. Part number of module will be displayed.
NOTE: To determine if a code is current or historic, clear the displayed code by pushing in and holding the odometer reset button ( longer than 5 seconds) until 'clear' comes up. Release the odometer reset button. Turn OFF the ignition switch. Run your bike and shut it down then recheck the DTC's again by repeating steps 1 to 9. If the code is current it will reappear.
9 - Press and release the odometer reset button to continue to the next module.
10 - Turn Ignition switch to OFF.
On models not equipped with a tachometer "No Rsp" will appear when the tachometer identifier is selected.
"No Rsp" (no response) will also appear if the run/off switch is in the off position when doing this procedure.
--------------------------
HFSM = Hands Free Security Module
TSM = Turn signalmodule
DTCs are designated by a P,C,B or U
P codes indicate issues monitored by ECM
C codes indicate an issue with ABS
B codes are set by Radio, Instruments and BCM
U codes indicate a communication problems with the modules
[h=4]Fault Code Abbreviation List[/h] ABS Anti-Lock Braking System
ACR Automatic Compression Release
AFR Air Fuel Ratio
AIS Active Intake Solenoid
ATS Air Temperature Sensor
BAS Bank Angle Sensor
BCM Body Control Module
CAN Controller Area Network
CCM Cruise Control Module
CKP Crank Position Sensor
DLC Datalink Connector
DTC Diagnostic Trouble Codes
ECM Electronic Control Module
ECT Engine Coolant Temperature
ECU Electronic Control Unit
EFI Electronic Fuel Injection
EFP Electronic Fuel Pump
ET Engine Temperature sensor
FI Fuel Injectors
FPR Fuel Pressure regulator
H-DSSS Harley-Davidson Smart Security System
HCU Hydraulic Control Unit, ABS
HFSM Hands Free Security Module
HO2S Heated Oxygen Sensor
IAC Idle Air Control actuator
IAT Intake Air Temperature sensor
ICM Ignition Control Module
IMAP MAP + IAT in one unit
ISS Ion Sensing System
JSS Jiffy Stand Sensor
LHCM Left Hand Control Module
MAP Manifold Absolute Pressure Sensor
MHR Right Hand Control Module
RCM Reverse Control Module
TCA Throttle Control Actuator
TGS Twist Grip Sensor
TMAP Intake Air Temperature / Manifold Absolute Pressure equipment
TPS Throttle Position Sensor
TSM / TSSM (Turn Signal / Turn Signal Security Module)
VE Volume Efficiency
VIN Vehicle identification number
VSS Vehicle Speed Sensor
WSS Wheel Speed Sensor
[LIST]
[*][URL="https://www.fuelmotousa.com/p-29661-harley-trouble-codes.html#pcodes"]P Codes[/URL]
[*][URL="https://www.fuelmotousa.com/p-29661-harley-trouble-codes.html#ccodes"]C Codes[/URL]
[*][URL="https://www.fuelmotousa.com/p-29661-harley-trouble-codes.html#bcodes"]B Codes[/URL]
[*][URL="https://www.fuelmotousa.com/p-29661-harley-trouble-codes.html#ucodes"]U Codes[/URL]
[/LIST]
P0031 Front HO2S low/open
P0032 Front HO2S shorted/high
P0051 Rear HO2S low/open
P0052 Rear HO2S shorted/high
P0072 AAT sensor low
P0073 AAT sensor high/open
P0107 MAP sensor failed low/open
P0107 Map Sensor Open/Low
P0108 MAP sensor failed high/open port
P0112 IAT Voltage Low
P0113 IAT Voltage Open/High
P0117 ET Sensor Low
P0118 ET Sensor High
P0120 TPS1 Range Error
P0122 TPS1 Low
P0123 TPS2 High/Open
P0131 Front Oxygen Sensor Low / Engine Lean
P0132 Front Oxygen Sensor High / Engine Rich
P0134 Front Oxygen Sensor Inactive
P0151 Rear Oxygen Sensor Low / Engine Lean
P0152 Rear Oxygen Sensor High / Engine Rich
P0154 Rear Oxygen Sensor Inactive
P0220 TPS2 Range Error
P0222 TPS2 Low/Open
P0223 TPS2 High/Open
P0261 Front Injector Open/Low
P0262 Front Injector High
P0263 Rear Injector Open/Low
P0264 Rear Injector High
P0265 Rear injector shorted high
P0371 CKP sensor wrong number of pulses
P0373 CKP Sensor Intermittent
P0374 CKP Sensor Synch Error
P0444 Purge Solenoid Open/Low
P0445 Purge Solenoid High
P0501 VSS Sensor Low
P0502 VSS Sensor High/Open
P0503 VSS failed high
P0505 Idle speed control unstable
P0562 Battery/ECM Voltage Low
P0563 Battery/ECM Voltage High
P0572 Brake Switch Low
P0577 Cruise Control Input High
P0603 ECM EEPROM Memory Error
P0605 ECM FLASH Memory Error
P0641 5 Volt Reference 1 Out of Range
P0651 5 Volt Reference 2 Out of Range
P0691 Fan/cooling relay output low/open
P0692 Fan/cooling relay output high
P1001 System Relay Coil Open/Low
P1002 System Relay Coil High/Shorted
P1003 System relay contacts open
P1004 System Relay Contacts Closed
P1009 VTD Disabled Fuel Due to Incorrect Password
P1010 Missing Password
P1017 ET indicates overheating
P1019 ECT Difference (high temp)
P1270 TGS 2 A/D Validation Error
P1351 Front Ignition Coil Driver Open/Low
P1352 Front Ignition Coil Driver High/Shorted
P1353 Front Cylnder No Combustion
P1354 Rear Ignition Coil Driver Open/Low
P1355 Rear Ignition Coil Driver High/Shorted
P1356 Rear Cylinder No Combustion
P1357 Front Cylinder Combustion Intermittent
P1358 Rear Cylinder Combustion Intermittent
P1475 Exhaust Actuation Position Error
P1477 Exhaust Actuator Open/Low
P1478 Exhaust Actuator Shorted/High
P1501 Jiffy Stand Sensor Low
P1502 Jiffy Stand Sensor High
P1510 EFI Limited Performance Mode
P1511 EFI Power Management Mode
P1512 EFI Forced Idle Mode
P1514 ETC Air Flow Fault/Error
P1600 EFI Module Processor Internal Error / Watchdog Error
P1608 Loss of continuous battery
P1655 ACR solenoid low/open
P1656 ACR solenoid shorted high
P1691 Cooling fan left low/open
P1692 Cooling fan left shorted high
P1693 Cooling fan right low/open
P1694 Cooling fan right shorted high
P2100 EFI Motor Circuit Open
P2101 EFI Motor Circuit Range Performance (Actuation Error)
P2102 EFI Motor Circuit Low
P2103 EFI Motor Circuit High
P2105 EFI Forced engine shutdown
P2107 EFI Module Processor Internal Fault
P2119 EFI Motor Throttle Body RangePerformance
P2122 TGS1 Low/Open
P2123 TGS1 High
P2127 TGS2 Low/Open
P2128 TGS2 High
P2135 TPS Correlation Error
P2138 TGS Correlation Error (Twist grip sensor)
P2176 EFI Closed Position Not Learned
P2184 ECT sensor low
P2185 ECT sensor high
P2300 Ignition coil driver low/open (front)
P2301 Ignition coil driver shorted high (front)
P2303 Ignition coil driver low/open (rear)
P2304 Ignition coil driver shorted high (rear)
I believe the 2004 still had the old style cam chain tensioners? If so Possibly worn, allowing the timing to jump off occasionally? Also compensator possibly worn? Mine back fired from a worn compensator but only when starting. Just some shots in the dark from afar
If you plan on keeping this bike, the best thing you can do is get one of the latest and greatest tuners. There are some that will allow you to read codes much easier than the Harley procedure. But I had a 2007 model and had to wait 4 weeks for a new ECM if it turns out to be that. I'm assuming you no longer are under any kind of warranty. I fortunately still had mine under an extended warranty. And personally I would never own a Harley without a warranty unless it is a carb'ed bike. These computer controlled things just scare the heck out of me when it comes to potential electrical problems which this very well may be. Before going too far though I'd change plus and plug wires if you have never done it. They could be the original and you might have wires breaking down and mis-firing.
Just for grins, check for an intake leak
Spray some WD40 around the intake flanges see if the engine speed changes
Over time the seals stop sealing, u pick up some air and you get a lean hiccup