So I'm new to this forum but read a bunch of great stuff here. My 2007 honda fit sport, MT, 204488 miles, has a flashing CEL. What could be causing it? I recently changed the battery, RR speed sensor, and also the pulsar since i checked it with the scanner and the code was for those. But since fixing those, i now have a flashing CEL. I figured it has to be a misfired since i attached my code scanner and it said P0302 which is cylinder 2 misfired. What does that mean and how do I fix it? It's only my cylinder 2 that is having the misfire

 

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I hear a faint knocking noise and the vehicle does jerk occasionally as i step on the gas

 

I'm not entirely sure how to go from here since I'm not that experienced but I will try my best.

Lets describe the sound you hear a bit more, does it sound like a constant tapping by chance? If it is a constant tapping it might be valve clearance, but I can't be fully sure.

Also, are there any difficulties starting or idling?

I'd be leaning toward a valve adjustment issue, a good amount of people here recommend it every 70k, but honestly there may be many problems that can cause this. Try moving the coil packs/sparks around first.

 

A 'knocking' noise could be a loose sparkplug. Tighten them all, right away.

Otherwise look for 'stuttering' here. Well documented.