Today I posted a problem I have been having with this focus, it has had a misfire for awhile, and I am just getting around to fixing it. It has not been the kind of misfire that makes it die or stall, it comes and goes, but it is there when the ac puts a load on the motor it always misfires when ac is turned on. So the misfire was P0302, so awhile back I switched 2 with 3 the coil on plugs that is, but it still did the same thing, since then I picked me up a OBD11 scanner, and today was the first time I used it, now for some reason there is only one DTC 2274, I don't know what happened to the misfire code, I don't think I fixed it just by switching the coils and was just seeing if the misfire would follow to no.3 then I would know it was the coil but like I said it don't even show up. So the one code I do have 02 sensor bank 1 sensor 3 stuck lean, does anybody know how to troubleshoot that, and what made it to get stuck being lean. And also if someone has a theory on this misfire that isn't a DTC anymore.I would appreciate any problem solving tips, will I have to buy a 02 sensor, can that make the motor cut out when turning on ac?
Tuesday, August 20th, 2013 AT 12:09 AM