Hc emissions high 15mph max 64 meas 145. 25mph max 47 meas 51 what could be the problem
Monday, February 11th, 2013 AT 3:51 PM
1 Reply
WRENCHTECH
MECHANIC
20,761 POSTS
HC is unburned fuel so you have to look for where it could be coming from. Simply changing the oil will sometimes help a lot but it usually comes down to incomplete combustion/misfire.