[PWheels]

Not long ago I finally got around the changing my cylinder 5 spark plug and coil because I had a terrible misfire. The problem seemed to go away but it seems to be creeping its way back as I drive more. I have had a bank 1 and 2 lean code as well since the misfire started that I was hoping would go away when the misfire was fixed but they're still around. I'm not sure what else to check for at this point besides the distributer, but I'm not sure if there's a way to test that before I go and buy a new one.
Any help is appreciated, thanks.

 

[85ltdcrownvic]

Since both banks are affected it’s probably not a coil. Clean the maf first as that is a common problem when they’re dirty. Also perform a compression check on all cylinders to rule compression out.


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[R.S.LOGAN]

With the running lean codes , check for vac leaks .