2001 Mazda Tribute Q&A

2001 Mazda Tribute Question: Would like to know why it won't pull.

It happened once before,,approx 2 months ago. this is the 2nd time. The diagnostic ( don't know the code ) but it says it's in the 4th cylinder. Thanks so much for any help!! -
Answer 1
what is the code number? poss po304, which would be misfire #4 cyl -
Comment 1
What would make it misfire?,,,And would misfiring make it not pull? I had a new spark plugs put in when it happened the 1st time,,,thanks,,,I appreciate it! -