I had this code show up today. Dealer swapped out my rear tire. I got 5 miles up the road as I was running low on gas (20 miles left). It was a shell station. Threw in 89 because the next up was 94 and they wanted twice as much. Truth be told I've used this on and off over 3 years without issue. Called the dealer wondering if there was a potential sensor they forgot to reconnect. They didn't believe so. The sensor is "Knock Sensor Front Circuit Low". They THINK I may have gotten bad gas and caused . So the question is where I go from here. I had to ride 30 min home and saw no changes in how it rode on possibly "bad gas". Sensor won't reset manually either. Should I remove the gas, put in better gas, then see if it goes away first? Or just replace the sensor and call it a day? Or is there something more detrimental going on?

EDIT: Totally meant to put this in the M8 forum. Reposting there.

 

Try octane booster, clear code and see if you get it again.

 

Yes as mentioned try octane booster first, get good fuel and clear the code. I had to run 87 in my bike a few weeks back with the fuel shortage. I kept it under 3k rpm and no issues.

 

Following up from my m8 thread post. Worked on the bike the other day and fixed it. Emptied the tank, pulled the battery positive and reconnected, added new fuel, turned it over and the code remained. Thought maybe the old fuel was still in the system. But before I ride it, I manually attempted to clear the code on the handlebars. Cleared out and all done. Appreciate the tips all.

 

I have a 2017 Harley Davidson Road Glide Specail. For the past month I have been getting a check engine light Error code P0327.... googling and looking researching one of the main diags have suggeted a knock sensor. I am contiplating changing my spark plugs and the knock sensor to see if this fixes the issue. I am the only owner and believe and I can't recall ever having my spark plugs changed. I have a Fp3 fuel pack on my bike that I thought could be causing the issue. I bypassed it re-flashing my ECU with the factory map..... cleared the codes... check engine lights goes away I let bike idle for awhile one time and the other time test road and sure enough the check engin elight returned. I'd really would hate to take to the Harley Dealership as I know they will charge me out of the wazoo for a simple fix.... Would you all start with changing spark plugs and it says bank 1 knock sensor to see it that fixes it? I have jacked my bike and checked every wire I could get to to make sure nothing was loose. BTW even with the check engine light on the bike still ran strong and sounded normal... I am just don't like riding my Hog with any check check engine lights on. Light it yellow btw if that helps any. Any and all input is welcome and appreciated.