today i pulled out the codes. all cylinders random misfiring. im wondering if the coils are going bad cause i just replaced the spark plugs. Does anyone know how to check the coils by using multimeter on r18? what kind of reading should i expect?
xyflz
P0300 = cylinder misfire detected - Random Cylinders
P0301 = cylinder misfire detected - Cylinder #1
P0302 = cylinder misfire detected - Cylinder #2
P0303 = cylinder misfire detected - cylinder #3
P0304 = cylinder misfire detected - cylinder #4
P0139 = H02S 12 circuit condition (heated oxygen sensor bank 1 sensor 2
those are the codes i pulled out today. my O2 sensor might be going bad
P0301 = cylinder misfire detected - Cylinder #1
P0302 = cylinder misfire detected - Cylinder #2
P0303 = cylinder misfire detected - cylinder #3
P0304 = cylinder misfire detected - cylinder #4
P0139 = H02S 12 circuit condition (heated oxygen sensor bank 1 sensor 2
those are the codes i pulled out today. my O2 sensor might be going bad
Are you sure you did the plugs right? If they are gapped incorrectly or not torqued right that can cause a misfire. If that was done correctly I would then look at the o2 sensor. I don't think I have seen one post on this forum of someone having a coil going bad, so I wouldn't really think it's that.
yea i did the plugs right. I think the O2 is going bad. My af ratio gauge doesnt read properly most of the times. I will have to pull O2 sensor out. maybe clean them or get a new one. im really short on money right now
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