2017 M8 P0237 Knock Sensor
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Stellar HDF Member
Joined: Apr 2006
Posts: 2,925
Likes: 948
From: Texas
2017 M8 P0237 Knock Sensor
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 a misfire. 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?
Try not to turn this into a gas type thread. Just want to sort out the issue.
Try not to turn this into a gas type thread. Just want to sort out the issue.
Road Warrior
Joined: Dec 2008
Posts: 1,999
Likes: 916
From: Madisonville, La
Well obviously the bike does not like what you put in. Rather than drain I would lightly run that tank down and refill with a "quality" gas and see if the issue remains or clears up. Some codes are set by a momentary communication issue and not indicative of an actual problem.
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Stellar HDF Member
Joined: Apr 2006
Posts: 2,925
Likes: 948
From: Texas
Worked on the bike today 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.
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GodFather
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Jun 20, 2009 11:14 PM
