I developed a misfire on cylinder #2 according to OBD2 error codes and I replaced all the plugs because it needed that anyway, but that made no difference. Then I swapped the #3 coil, which is pretty new, with the #2 coil and the specific error code P0302 went away, but then I got a P0300 general random multiple cylinder misfire. Could switching those coils have something to do with that? Also, I have 5w-30 oil in this car and I am in a hot climate (west central Florida) and someone told me that I should have 10-w30 in there and that it might, even though it's remote, cause the P0300. I don't think that's true though. Am I mistaken, or is he? Thanks.
have the same problem?
Tuesday, November 1st, 2022 AT 9:27 AM