failed emissions high hc level ideas?
dragonsmoke1972
03-28-2007, 04:07 PM
:banghead: an someone tell me what things to start with fixing to bring my hc levels way down. they are at 549... normal 127. all other levels were well within range. Is it the o2 sensor? Thanks Kira
maxwedge
03-28-2007, 06:27 PM
Welcome to AF. Year , engine and mileage, please.
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