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P0303 code

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5K views 1 reply 2 participants last post by  06hemixk  
#1 · (Edited)
I have a 2008 sport 3.7L and the check engine light came on. I did the key trick And got the code: p0303. How do I fix or where do I start. I know is a #3 cylinder misfire. Anything helps
 
#2 · (Edited)
Its either a coil, or the plug, pull the plug to make sure its not fouled, then i would swap the coil.


If none of those work, than a compression test would not hurt.