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P1312 but no misfiring Posted by Ari [Email] (#2847) [Profile/Gallery] (more from Ari) on Tue, 30 Nov 2021 07:07:36 Members do not see ads below this line. - Help Keep This Site Online - Signup |
2010 9/3, around 175K miles.
Got a CEL, my only code is 1312, which indicates "uneven running and misfiring."
But my eSid3 is telling me that there is virtually no misfiring: a couple in cylinders 2 and 3 on starting the car, but that's it, which doesn't seem abnormal. 2 misfires, in separate cylinders, shouldn't be enough to throw a code, I think. I reset the CEL, and it threw the same code the next day, but, according to eSid3, still no misfiring.
Attempted to induce misfiring by doing some hard acceleration (side effect of test: fun!), but no dice: the car runs perfectly smoothly.
What could be throwing this code, without actually causing misfiring? Thanks!!
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