HC levels for Emissions, uh oh Options

[Tigawoods]

well i failed my emissions test
the HC level had surpassed the legal limit
725is the limit and i ran 925

there are a number of things it could be but i beleive the main thing could be the SAFCII
which changed the air/fuel ratio
any idea's or opinions?

[Bitter]

haha, i suppose its helpful if people would post up what mods they have when posting a problem. the other forum i'm on has a template for problem report threads....and a separate section for them.

you might try replacing the main cat with a larger longer model designed for a V8 engine, like a ford truck. it'll come in a larger inlet/outlet diameter and should have enough catylyst to clean up the exhaust without the 2nd cat in place.

adding a 2nd cat downstream probably wouldnt work out since it may not reach temperature, also how cats function, there may not be enough stuff left in the exhaust for the reaction to occur.