P0305 situation
#1
P0305 situation
Last month I was chasing down a p0304 misfire and got lucky to find the wire was completely fried, replaced all the wires and problem went away. Less than 500 miles later I'm getting a p0305 code. The plugs are less than 4K miles old. What else can cause a misfire that is something other than plugs and wires? Coil pack? 02 sensors?
#3
Tough combination. But O2 sensors need replacement no way to clean that. I would reset it again and see what happens. But misfire need to be checked. If you can check the coil packs physically for cracks and arching, thats better or replace it.
Last edited by LR03NJ; 09-13-2017 at 09:43 PM. Reason: Add
#4
#5
#6
#8
Checked for vacuum leaks a few times, can't find anything. O2's have never been replaced so I may start there. I noticed when I replaced the wires a few weeks ago that the coil pack wasn't tightened into place so it had been just bouncing around. Originally I would've thought the pack was the issue but it ran fine until the three days in the rain.
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