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Twin cam sputtering

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Old Apr 24, 2025 | 08:55 AM
  #11  
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Originally Posted by 702
Odd. Quite odd.

Those are historic codes. Clear them, change your plugs, see what happens.
I’ll give it a whirl
 
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Old Apr 24, 2025 | 11:30 AM
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Wonder if you get the same code using the bike's built-in diagnostics.
I would check for intake leaks.
 
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Old Apr 24, 2025 | 12:09 PM
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P0118 ET Sensor Voltage Open/High EFI

Check the connection to the Engine Temp Sensor. Measure the resistance of the sensor.
 

Last edited by John CC; Apr 24, 2025 at 02:11 PM.
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Old Apr 24, 2025 | 05:11 PM
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I'd check connections and make sure they are good, You may want to replace the sensor.. Volts high means that the ECU thinks it's running rich and will lean out long term AFR settings.. Not sure if you can do it but you can try resetting the long term closed loop and see it the bike runs better for a while..


Opps read it wrong..
 

Last edited by Max Headflow; Apr 24, 2025 at 07:02 PM.
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Old Apr 24, 2025 | 06:19 PM
  #15  
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High is telling the ECU that the engine is very cold, <-4F, however, "open" is saying it's out of the normal range, too.
 
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Old Apr 24, 2025 | 06:37 PM
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If you take a close look at his reader he's had 12 start/stop cycles since the last DTC was set, and the codes are all historic. Help me understand why you wouldn't just clear them and see what develops? I suggested that, as well as replacing his 2 year old spark plugs. This is what I would do, am I off base here?
 
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Old Apr 24, 2025 | 07:10 PM
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Pull the ET sensor connector off, clean and reinstall.
 
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Old Apr 26, 2025 | 05:25 PM
  #18  
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Swapped the plugs. I’ll take it for a ride tomorrow, pouring today. Here are some pics of the plugs. (I dropped the one showing no gap)




 
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Old Apr 28, 2025 | 01:09 PM
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Replaced the plugs and took it for a ride and still the same issue. Did the diagnostics through the Speedo and got this along with pn 34327-06


 
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Old Apr 28, 2025 | 02:55 PM
  #20  
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Clear that, if it comes back, that may be your issue. Sorta hard to check.

One would think there would be idle issue also.






 

Last edited by Jackie Paper; Apr 28, 2025 at 02:58 PM.
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