I know in my 98 Golf, the coil pack was starting to crack (pretty common
issue) and would run rough when it was damp outside, and sometimes throw a
code.
With proper light you could see the arcing on the pack, and also hear it.
-PJ
> Date: Thu, 15 Sep 2011 22:08:04 -0400
> From: pj_thomas at comcast.net
> To: shop-talk at autox.team.net
> Subject: [Shop-talk] ODBII trouble code P0316
>
> After Irene and hitting some big puddles my 2002 Taurus started
> misfiring. I get p0303 code which is a misfire on cylinder 3. I've
> already replaced the air filter which was wet; probably got water during
> the storm or just so humid the filter just wicked it up. I'm thinking
> (hoping) that the damp filter fouled the plugs. 100K so they need to be
> replaced anyway. Also changing the rodent chewed wires. Going to do
> this Saturday. If that does not fix it, coil pack.
>
> The question is I get P0303 which I know is misfire on cylinder 3. But
> I also got a P0316 once. I can't seem to find out what this code means.
>
> Peter T
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