have a slight miss at idle when the engine is warm. on 2001 Nissan Xterra

Started after I changed the spark plugs. The engine idles down intermittently and shudders slightly like it is going to shut off.

Asked by for the 2001 Nissan Xterra
1 answer
do you have the right plugs and ck the gap and see if you cracked the porclaine part of the plug