Originally posted by SUPER LAUBO
any of you have ideas to why i've failed???
i only failed HC @ 15 and 25mph. :happysad:
my CO and NO content was perfectly fine, but my NO content for low was close. i'm 10 degree BTDC (retarded in other words)
my engine is completely new from a rebuilt and it has only 1200 miles on it.. :eh:
HC low = 131ppm , max allowed = 66
HC high = 59, max allowed = 49
what do you think i can do to rectify the problem? i spoke to my trusted muffler shop and they said to run my car at least 30 minutes and keep it revved before i get it tested.
TIA
:thumbup:
sounds like good advice. it's probably failing because it's too cold. make sure it's warn as possible. was this the newer test with the dyno or just the standard sniffer test?