Code 300 on 1999 GMC 1500 Pickup

I get a code 300 Random multiple misfire I am at a loss of what to do any ideas

by in Massena, NY on March 07, 2010
1 answer
ANSWER by , March 07, 2010
Read this article for a good understanding of the P0300 code: http://repairpal.com/OBD-II-Code-P0300