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07 SuperGlide rear cylinder misfire HELP plz.

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  #1  
Old 07-24-2011, 11:22 PM
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Default 07 SuperGlide rear cylinder misfire HELP plz.

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My 07 Dyna Super Glide has a major issue with the rear cylinder misfiring/dropping off. Check engine light started coming on after a few miles but no apparent issues. After a few more rides the check engine light starting coming on sooner and more frequent. At that point I stopped and had Harley check the code, which they advised was reading "ignition coil?" but I would have to schedule and appointment for a more thorough diagnostic etc. With no noticeable issues other than the light coming on I decided to ride on and schedule another time.

A few days later I was riding, and after warm up within 5 miles or so, the rear cylinder went dead. I limped her home then after about a mile or so the cylinder picked back up and ran fine. I made and appointment with HD and dropped it off explaining to them the issues, "which started not long after a tank lift and billet headlight install". They called the next day and said ready for pick up, $81. I thought too easy and asked what was performed and they stated that they replaced the spark plugs, which obviously I could have done if I had thought it was that. I paid, loaded her up, and headed home. As soon as I got home and got it off the lift I rode about 5 miles, ran fine, then the cylinder went dead again! Now it drops off after about 2 seconds of starting instead of after warm up.

At this point I'm so pissed off at the HD dealership since I spent $81 for nothing! Since I find them incompetent and don't particularly like giving them money for nothing I decided to try and trouble shoot on my own before I take it to a different dealership. I began by checking the plugs (even though they are new thought maybe plug wires) which appear to be getting good spark, so I assumed the rear injector may be going bad since it's getting spark, even though bike has low miles with approx 3500 miles on it. The voltage was reading virtually the same in both injectors, but I decided to try another injector in the rear to rule it out. After replacing the rear injector with an alternate injector, which was reading the same voltage, I'm having the same issue with no change or fix.

I'm running out of options so I thought maybe I had pulled something loose during the tank lift and billet headlight installation, since it all started shortly thereafter, but I can't find anything loose. Since it appears to be getting spark and fuel could the ingnition module cause this issue without affecting any other systems? Any help would ge greatly appreciated.
 
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Old 07-25-2011, 03:52 AM
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Reflash the ECM? Harley's have a rear cylinder shutdown feature that is supposed to stop the rear cylinder's firing when it gets too hot, it sounds like it might be a bit sensitive. That feature can be disabled.
 
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Old 07-25-2011, 09:57 PM
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This tends to make more sense considering the plugs are getting good spark which makes me think the coil is functioning properly. Maybe the "ignition coil/module" code covers the sensor code as well. Since it increasingly got worse after warm up then eventually shut the cylinder down, and now immediately after start up, could mean the sensor was going bad and then finally took a crap. If I can locate the cylinder temperature sensor and replace or bypass it maybe that will fix it. You've been a great help and I appreciate it. Hopefully I will be lucky enough for it to only be the sensor.
 
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Old 07-25-2011, 11:17 PM
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That Engine Temperature Sensor (ET) is located on the back of the front cylinder, right behind the horn mounting bolt. You'll need to disconnect the QD on the fuel line to get to it. Also disconnect the battery (-).

Good luck!
 
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Old 07-25-2011, 11:32 PM
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Originally Posted by WS6 Formula
Might be a bad wire. Several owners had the same problem and it was caused by no service loop in the wire to the injector. So when the engine is rocking in the rubber mounts it is pulling on the wire, the insulation on the wire stretches but the wire doesn't and breaks.
Originally Posted by WS6 Formula
When your checking the wiring with an ohm meter, do so as if you were checking ignition wires (Move the wire around when checking the continuity from point "A" to point "B").
.......


Originally Posted by WS6 Formula
Check engine codes, that will usually lead you in the right direction.


Speedometer Self Diagnostics: The speedometer is capable of displaying and clearing
speedometer, tachometer, TSM/TSSM and ICM/ECM Diagnostic Trouble Codes (DTC).
1- Turn Ignition switch to OFF & Run/Stop switch is to Run.
2- Push odometer reset button in & hold.
3- Turn ignition switch to Ignition and release odometer reset button. Background
lighting sould 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/ 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 identifer is selected.
"No Rsp" will also appear if the run/off switch is in the off position when doing this
proceedure.
--------------------------
DTC FAULT CONDITION MODULE
"BUS Er" Serial data bus shorted/low/open/high
B0563 Battery Voltage High TSM/TSSM
B1004 Fuel Level Sending Unit Low Instruments
B1005 Fuel Level Sending Unit High/Open Instruments
B1006 Accessory Line Overvoltage Instruments
B1007 Ignition Line Overvoltage Instruments
B1008 Reset Switch Closed Instruments
B1122 Right turn output fault
B1131 Alarm Output Low TSM/TSSM
B1132 Alarm Output High TSM/TSSM
B1134 Starter Output High TSM/TSSM
B1135 Accelerometer Fault TSM/TSSM
B1141 Ignition switch open/low
B1151 Sidecar BAS Low TSM/TSSM
B1152 Sidecar BAS High TSM/TSSM
B1153 Sidecar BAS Out of Range TSM/TSSM
P0106 MAP Sensor Rate of Range Error Carb
P0107 Map Sensor Failed Open/Low Carb
P0107 Map Sensor Open/Low EFI
P0108 Map Sensor Failed High Carb
P0108 Map Sensor High EFI
P0112 IAT Sensor Voltage Low EFI
P0113 IAT Sensor Voltage Open/High EFI
P0117 ET Sensor Voltage Low EFI
P0118 ET Sensor Voltage Open/High EFI
P0122 TP Sensor Open/Low EFI
P0123 TP Sensor High EFI
P0131 Front 02 sensor low (lean)
P0132 Engine running rich
P0134 Front 02 sensor open/not responding
P0151 Rear 02 sensor low (lean)
P0152 Rear 02 sensor high (rich)
P0154 Rear 02 sensor open/not responding
P0261 Front Injector Open/Low EFI
P0262 Front Injector High EFI
P0263 Rear Injector Open/Low EFI
P0264 Rear Injector High EFI
P0373 CKP Sensor Intermittent Carb
P0373 CKP Sensor Intermittent EFI
P0374 CKP Sensor Not Detected Carb
P0374 CKP Sensor Synch Error EFI
P0501 VSS Low Carb
P0501 VSS Low EFI
P0502 VSS High/Open Carb
P0502 VSS High/Open EFI
P0505 Loss of Idle Sped Control EFI
P0562 Battery Voltage Low Carb
P0562 Battery Voltage Low EFI
P0563 Battery Voltage High Carb
P0563 Battery Voltage High EFI
P0602 Calibration Memory Error Carb
P0603 EEPROM Failure Carb
P0603 ECM EEPROM Error EFI
P0604 RAM Failure Carb
P0605 Program Memory Error Carb
P0605 ECM Flash Error EFI
P0607 Converter Error Carb
P0661 Intake solenoid low/open
P0662 Intake solenoid high/shorted
P1001 System Relay Coil Open/Low EFI
P1002 System relay Coil High/Shorted EFI
P1003 System relay Contacts Open EFI
P1004 System Relay Contacts Closed EFI
P1009 Incorrect Password Carb
P1009 Incorrect Password EFI
P1010 Missing Password Carb
P1010 Missing Password EFI
P1351 Front Ignition Open/Low Carb
P1351 Front Ignition Open/Low EFI
P1352 Front Ignition Coil High/Shorted Carb
P1352 Front Ignition Coil High/Shorted EFI
P1353 Front Cylinder No Combustion EFI
P1354 Rear Ignition Coil Open/Low Carb
P1354 Rear Ignition Coil Open/Low EFI
P1355 Rear Ignition Coil High/Shorted Carb
P1355 Rear Ignition Coil High/Shorted EFI
P1356 Rear Cylinder No Combustion EFI
P1357 Intermittent Secondary Front EFI
P1358 Intermittent Secondary Rear EFI
U1016 Loss of ICM/ECM Serial Data Instruments
U1016 Loss of ECM Serial Data, Vehicle Speed, Vehicle Inhibit Motion or Powertrain
Security Status TSM/TSSM
U1064 Loss of TSM/TSSM Serial Data Carb
U1064 Loss of TSM/TSSM Serial Data EFI
U1064 Loss of TSM/TSSM Serial Data Instruments
U1097 Loss of Speedometer Serial data Carb
U1097 Loss of Speedometer Serial data EFI
U1097 Loss of Speedometer Serial data TSM/TSSM
U1255 Missing Message at Speedometer EFI
U1255 Serial Data Error/Missing Message EFI
U1255 Serial Data Error/Missing Message Instruments
U1255 Serial Data Error/Missing Message TSM/TSSM
U1300 Serial Data Low Carb
U1300 Serial Data Low EFI
U1300 Serial Data Low Instruments
U1300 Serial Data Low TSM/TSSM
U1301 Serial Data Open/High Carb
U1301 Serial Data Open/High EFI
U1301 Serial Data Open/High Instruments
U1301 Serial Data Open/High TSM/TSSM
2006 models with 02 sensors (Dynas)
P0131 Front 02 sensor lean for any length of time
P0151 Rear 02 sensor lean for any length of time
Above codes can also be set if 02 sensor fails.
-----------------------
AFR – Air Fuel Ratio
ATS – Air Temperature Sensor
BAS – Bank Angle Sensor
CCM – Cruise Control Module
CKP – Crank Position Sensor. The CKP generates an “AC signal” which is sent to the
ECM where it is used to reference engine position (TDC) and speed. Home position
established by taking readings off the 22 teeth on the alternator rotor.
DTC – Diagnostic Trouble Codes
ECM – Electronic Control Module. (The Computer) Computes the spark advance for
proper ignition timing and fuel control based on sensor inputs (from CKP, MAP & TP
sensors) and controls the low-voltage circuits for the ignition coils and injectors. The
dwell time for the ignition coil is also calculated in the microprocessor and is
dependent upon battery voltage. The programmed dwell feature gives adequate
spark at all speeds.
ECT – Engine Coolant Temperature. Sensor also controls the cooling fan relay that
provides 12 Vdc to the fans.
EFI – Electronic Fuel Injection
EFP – Electronic Fuel Pump
ET – Engine Temperature sensor
FI – Fuel Injectors
FPR – Fuel Pressure regulator
IAC – Idle Air Control actuator
IAT – Intake Air Temperature sensor
ISS – Ion Sensing System…detonation detection
MAP – manifold Absolute Pressure sensor. The MAP sensor monitors the intake
manifold pressure (vacuum) and sends the information to the ECM. The EMC then
adjusts the spark and fuel-timing advance curves for optimum performance.
TP – Throttle Position Sensor
TSM/TSSM (Turn Signal/ Turn Signal Security Module)
VE – Volume Efficiency
VSS – Vehicle Speed Sensor. Used as an input for idle speed control
 
  #6  
Old 07-26-2011, 01:19 AM
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Thanks WS6, for chiming in. I was hoping that someone with more knowledge could help out Papa Georgio.

I saw his unanswered inquiry slipping way down on the list and gave it my best shot and a bump. Thankfully, you saw it and made a great post!
 
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Old 07-26-2011, 11:14 PM
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Thanks guys I really appreciate the help with this. I will dig into it this week and let you know how it goes. Again thanks!
 
  #8  
Old 08-16-2011, 11:17 AM
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Default same problem with 07 street bob

My sons 07 street bob has the exact same problem as yours. 3 certified mechanics have not found the problem. His misfires after 30 to 40 miles. codes show rear o2 sensor..replaced. crank position sensor..replaced. coil replaced, plugs, wires etc.. Tank lift was also installed at 500 miles. only 1600 miles on bike. Maybe ecm? Very frustrating! Any help would be appreciated if yours got fixed.
 
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Old 10-23-2011, 04:00 PM
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Where you able to get this problem fixed? I have a 2006 ultra classic that is have a very similar problem. It seems to do it when the bike is cold and first started. But does not happen every time. It happen today several time and would not refire the front cylinder unless I turn the engine off and restarted. After doing this several time it ran fine. Any advice?
 
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Old 10-23-2011, 09:22 PM
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I am starting to think that I should have kept my carbureted bike. I love my new bike but so much electrical makes me nervous about fixing future issues. Ill look forward to seeing how the OP's experience turned out.
 


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