Quote:
Originally Posted by 1BUICKGN
I just got back from the local gas station that performed an emissions test on my gn and it failed the test. i was wondering if anybody has any ideas on lowering my results.
reading: limit:
hc gpm 03.11 02.00
co gpm 054.86 030.00
nox gpm 03.57 03.00
i don't think my gn1 heads and 72psi injectors are helping any.... 
i'm currently running a full exhaust with cat and the fuel pressure is set at 44psi with the line off. |
Since you failed across the board, your cat isn't doing it's job, and likely because you didn't get a smog chip burned for your injectors, so your probably running in open loop most of the time (bad thing for smog), and I seriously doubt those heads even have and EGR capability, so you're pretty much screwed from the get go.
To get the kind of numbers they're looking for you're going to need be full time closed loop minimum, real good cat., high engine temps (200°) and tight control of your A/F ratio, either with a stock O2, or a WBO2 that can control your low and mid load A/F ratio.
CAT.
EGR.
Good Chip.
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