2026-09-18 17:35 UTC
Replies (2)
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@Kintarian@lemmy.world 2026-09-18 20:50
My check engine light came on and freaked me out. Found out the code was P0171: Bank running lean. I currently have a mix of gas and E85 in the tank and the computer doesn’t like it. Nothing is actually wrong.
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@Zink@programming.dev 2026-09-18 23:32
Something as serious as a misfire can also cause the check engine light to flash. Why yes, I did once lose a whole-ass cylinder in a 4-cylinder, manual transmission car. While a couple hours from home! It broke a freaking exhaust valve while we were just cruising along, and the light started flashing immediately with a code for cylinder X misfire. Funny enough, other than the loss of power it drove alright while in motion, including on the highway. It would immediately stall if left to idle at a stop light, though. I think I ended up using the hand brake to hold still while keeping my foot on the gas to keep the revs up. Fun.