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Check engine light-code P1356 Help

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  #1  
Old 05-23-2018, 04:10 PM
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Default Check engine light-code P1356 Help

So...I was out on an excellent ride this morning and I get a check engine light. Pulled the code and it’s P 1356 - rear cyl. No combustion. Bike ran great, no misfire, no stumble, no nothing. It did seem to take just a bit longer to start than normal. The cel does come and go, but it’s on more than it’s off. What does all this mean?
 

Last edited by Cozz; 05-23-2018 at 04:11 PM.
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Old 05-23-2018, 04:28 PM
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Old 05-23-2018, 05:01 PM
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That can be a nuisance code or it can be real. There were several factory calibrations that were too sensitive with ION sense and would throw that code. That code can also be thrown if there is a true non-combustion event.

There were also calibrations on the original EFI tuner that would throw that code a lot - they were the ones with HTCC heads.

Can you provide a complete description of the bike, any and all engine or exhaust mods, etc.
 
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Old 05-23-2018, 06:22 PM
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Originally Posted by Ed Ramberger
That can be a nuisance code or it can be real. There were several factory calibrations that were too sensitive with ION sense and would throw that code. That code can also be thrown if there is a true non-combustion event.

There were also calibrations on the original EFI tuner that would throw that code a lot - they were the ones with HTCC heads.

Can you provide a complete description of the bike, any and all engine or exhaust mods, etc.
it’s all stock, except for slightly free er flowing 2012 RK mufflers. 2004 Ultra. Spark plugs have a couple thousand miles on them. Plug wires are original and most likely need to be changed. No drive ability problems at all. Bike ran great all morning.


 

Last edited by Cozz; 05-23-2018 at 06:26 PM.
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Old 05-23-2018, 06:32 PM
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What brand plugs? That can cause it.

Also, that is the vintage where many revised cals were released for things like false misfire.
 
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Old 05-23-2018, 06:48 PM
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Originally Posted by Ed Ramberger
What brand plugs? That can cause it.

Also, that is the vintage where many revised cals were released for things like false misfire.
stock hd plugs
 
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Old 05-23-2018, 06:48 PM
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Plug wires is first thing I’d check.
 
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Old 05-23-2018, 08:24 PM
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Since this is a new problem and the plugs were just changed, I would agree and change the plug wires first then monitor. If it still occurs let us know. Also make sure you didn't get anything such as anti-seize on the porcelain that would cause tracking down the plug.
 

Last edited by Ed Ramberger; 05-23-2018 at 08:26 PM.
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Old 05-23-2018, 09:24 PM
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I’ll clear the code , change the wires and we’ll see what happens.
 
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Old 05-24-2018, 08:44 AM
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I had an 04 Electra Glide and I would get that code at least once a month. It drove me nuts because in the 6 or 7 years I had the bike I checked everything I could think of never did figure out why it kept popping up. I have heard others say its a "phantom code" on certain year bikes. So after a while I just got used to resetting the code and ignoring it.
 
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