2004 Nissan Sentra 1.8 PO300 code

[EricTheCarGuy]

Anytime I have a misfire I start with a power balance test to see if I can isolate a particular cylinder(s) that might be at fault, once you nail that down the next step is to figure out what the issue is, spark, fuel, or engine mechanical. Here’s a link you might find helpful.
http://www.youtube.com/watch?v=bAOmUjAjNjE