I have a 2001 Ford Focus with a manual transmission and the code I got at O’Riely’s #1 cyclinder missing. I have already replaced the plugs and wires. more about the car on post June 29 2010


How about a compression test?


I enter the code incorrectly PO301


I get 30 highway and around 23 city mpg


sticky valve?


What would a compression test show?