P0302 CEL. What to check/change first

[david]

I'm getting a p0302 code for cylinder 2 misfire when I look it up it narrows it down tto wiring, mech fault,fuel system, egr valve, injector, intake/ignition system, ckp sensor, ho2s front, ECM,

what do I check or replace first to narrow this down more? Ignition coils?
spark plugs were changed 10k ago with no issues
thanks for any help

i used my galaxy s3+torque+Bluetooth to run the code. Cool app!

---------- Post Merged at 07:56 PM ---------- Previous Post was at 01:04 PM ----------

 

[david]

Anyone else have this code?

 

[Fire0nic3FX]

My moms Nissan had this issue. Cylinder 2 was misfiring from a blistered coil plug on that cylinder. Easy way to check is to swap cylinder 1 coil with cylinder 2. If the problem goes to cylinder 1 it's the coil. If its still the same, spark plugs would be next on the list. Check for any fouling on the tips.

 

[david]

Thanks. What would fouling look like? That may be a dumb question

 

[Dracula]

Thanks. What would fouling look like? That may be a dumb question

http://www.ngksparkplugs.com/tech_support/spark_plugs/faqs/faqread.asp

 

[angeljr8282]

Had this problem on my maxima change the coil pack.