99 honda Passport issues

i have a 99 honda passport and i am having a problem with it. it shakes when its idleing like for example in parking lots and when i am stopped at lights when i drive and when i start it its just fine... but i know that
its misfireing somewhere i am not sure where i just replaced all the spark plugs but not the cables and i think that there might possibly be something with the O2 sensors but i am not sure what to do any suggestions?
i would greatly appreciate anyones advice.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.