high hydrocarbons ..wont pass e-test HELP!!

wesoneil · Post by **wesoneil** » Fri Jul 24, 2009 6:58 pm

i have a 1990 beretta 3.1 and i have tried to etest it 3 times now fails everytime and i always have the same readings..... i have changed my whole exhaust new air filter and new spark plugs and wires what else could be causing this??

Money pit Beretta · Post by **Money pit Beretta** » Fri Jul 24, 2009 10:51 pm

Posting your readings could help. Try some SeaFoam, put it into the brake booster hose. Are you running a 195 Tstat? My guess is that the check engine light is off.

Post by **Cliff8928** » Sat Jul 25, 2009 2:52 am

How high is your HC reading?

99GaGT3X00 · Post by **99GaGT3X00** » Sat Jul 25, 2009 6:19 pm

heres 5 common causes of high HC
http://www.smogtips.com/failed-high-hydrocarbons-HC.cfm

i had the high hc happen when i had the Z26 but that was so long ago i really dont remember what i changed to fix it.
i think i changed the O2 and cleaned out the egr and its passages on the uim

Beretta.net