I've already smogged my car twice and failed both times. I'm about to do it again tomorrow and hopefully i'll get lucky, but I wanted some feedback first about what should be done.
1st test
15mph
%co2 14.5
%o2 0.1

MAX/AVE/MEAS
HC 90 12 129
CO 0.54 0.05 0.48
NO 1016 74 618
FAIL

25mph
%co2 14.7
%o2 0.0
MAX/AVE/MEAS
HC 56 5 49
CO 0.53 0.02 0.21
NO 876 78 116
PASS


2nd test
15mph
%co2 15.0
%o2 0.1
MAX/AVE/MEAS
HC 90 12 90
CO 0.54 0.05 0.08
NO 915 74 118
PASS

25mph
%co2 14.8
%o2 0.2
MAX/AVE/MEAS
HC 56 5 77
CO 0.53 0.02 0.08
NO 789 78 109
FAIL


Timing was measured both times at 16BTDC.

The changes between the 1st and 2nd tests were a new o2 sensor and catalytic converter.
1st test - fail 15mph due to HC levels, but passed 25mph
2nd test - fail 25mph due to HC levels, but passed 15mph (barely)

The only mods on the car are dc headers and apex-i ws catback exhaust. I drove the crap outta the car before testing both times to heat up the cat. I need suggestions on lowering the HC levels which can be done relatively quickly before I test. Thanks

Erik

[Modified by erikz, 10:22 AM 11/30/2002]


[Modified by erikz, 10:24 AM 11/30/2002]

 

Put your stock exhaust manifold back on...it is probably your DC manifold that is making you fail. It happened to me...failed with the DC passed with the stock manifold.

 

I would, but I dont have it, I bought the car this way. I was just looking for minor things to help and hopefully i'll slide by. If it fails i'm purchasing a stock exhaust manifold.

 

I have a stock gsr exhaust manifold for sale if you want it.

tnt513@juno.com

 

Here's a followup to the situation:
I tested again today and this time I passed

for those who are wondering:
I filled my tank up halfway with 87 octane gas, and put about a pint of denatured alcohol. It dropped my HC levels just enough to pass

 

I live in Florida and we dont have these "smog" checks....What are they? Are they monthly or something?

 

Yearly with registration. At least thats what it is here in Utah.

 

i was going to suggest finding pure octane.. 100!!

 

next time retard the timing a few degrees.......that always lowers HC counts and NOx as well........

 

I had this problem about a month ago. I got a bottle of 104+ octane booster & drove the car for about 2 hrs before the state inpection. The Integra passed with no problems after that.