Failed Smog
#1
Failed Smog
Well I went and smogged my car today. The first time he put it on the machine the car failed, he then let idle for a few minutes before trying again and I barely passed the second time around. These are my results
At 15 mph: PASSED
%CO2 Meas = 14.53
%O2 Meas = 0.29
HC (PPM) MAX 51, AVE: 9, MEAS 12
CO (%) MAX: 0.48 , AVE: 0.02, MEAS 0.05
NO (PPM) MAX 419, AVE 57, MEAS 418
At 25 mph: PASSED
%CO2 meas = 14.50
%O2 meas = 0.21
HC (PPM) MAX 35, AVE: 7, MEAS 11
CO (%) MAX: .46, AVE: 0.03, MEAS 0.04
NO (PPM) MAX 706, AVE 50, MEAS 394
Any guesses why I got 418 NO (PPM) at 15MPH?
This is all the stuff Ive done to the motor
- K&N Air Filter
- Whisper Carbon Fiber Intake Lid
- Smooth Intake Bellow
- Ported and Polished Throttle Body
- MSD Wires
- NGK TR55 Spark Plugs
- 3" Exhaust Cutout
- Magnaflow Exhaust
- LS7 Lifters
- Comp Cams LSX Chromemoly Hardened 7.400" Pushrods
At 15 mph: PASSED
%CO2 Meas = 14.53
%O2 Meas = 0.29
HC (PPM) MAX 51, AVE: 9, MEAS 12
CO (%) MAX: 0.48 , AVE: 0.02, MEAS 0.05
NO (PPM) MAX 419, AVE 57, MEAS 418
At 25 mph: PASSED
%CO2 meas = 14.50
%O2 meas = 0.21
HC (PPM) MAX 35, AVE: 7, MEAS 11
CO (%) MAX: .46, AVE: 0.03, MEAS 0.04
NO (PPM) MAX 706, AVE 50, MEAS 394
Any guesses why I got 418 NO (PPM) at 15MPH?
This is all the stuff Ive done to the motor
- K&N Air Filter
- Whisper Carbon Fiber Intake Lid
- Smooth Intake Bellow
- Ported and Polished Throttle Body
- MSD Wires
- NGK TR55 Spark Plugs
- 3" Exhaust Cutout
- Magnaflow Exhaust
- LS7 Lifters
- Comp Cams LSX Chromemoly Hardened 7.400" Pushrods
Last edited by uLs1a; 07-30-2009 at 05:43 PM.
#3
TECH Enthusiast
Join Date: Feb 2005
Location: south jersey. again
Posts: 734
Likes: 0
Received 0 Likes
on
0 Posts
in jersey the speed they bring the car up to is about 30 mph. although your car is spewing some crap. tune up, tune, some kind of internal engine cleaner.
Trending Topics
#12
TECH Senior Member
iTrader: (3)
Join Date: Apr 2006
Location: Western Burbs of Detroit
Posts: 6,524
Likes: 0
Received 1 Like
on
1 Post
Your motor is basically stock, running on a factory tune correct ?
Why are you using ngk 55's ? Isn't that a cooler plug used in higer compression motors to help prevent pre Detonation ?? Correct me if I'm wrong.... Get her tuned to make sure you aren't running pig rich too. A ported tb could be part of the problem too since its untuned. Just my 2 cents. Good luck !!!
Why are you using ngk 55's ? Isn't that a cooler plug used in higer compression motors to help prevent pre Detonation ?? Correct me if I'm wrong.... Get her tuned to make sure you aren't running pig rich too. A ported tb could be part of the problem too since its untuned. Just my 2 cents. Good luck !!!
#14
Its not the p/p throttle body cause I have been running that for a good 5 years. NGK TR55 is what a lot of people on here reccommend and I have never had a problem with them before. I believe the NGK TR6 is used for fi and n02.
The only SES code I have had was P0174, but that was a good two months ago
The only SES code I have had was P0174, but that was a good two months ago