Infamous CA smog test failed horribly!
#1
Senior Member
Thread Starter
iTrader: (1)
Join Date: Jul 2003
Location: california,usa
Posts: 554
Likes: 0
Received 0 Likes
on
0 Posts
Infamous CA smog test failed horribly!
O.k. so I failed horribly, my numbers are way above the allowance.
HC (ppm) Max @ 25 mph = 53, I measured 1,000+
CO (%) Max @ 15 mph = 0.52
CO (%) Max @ 25 mph = 0.50 - Measured over 3.0+
I know the tricks on how to pass the smog test. But i'm not worried about that, I'm worried about where these numbers are coming from? I'm a little bit concerned about something being wrong with the car, any opinions?
I was surprised I failed, seeing how I took most of my mods off.
- 95 FD automatic.
- Stock Mount IC (greddy)
- y-pipe.
- Cat-back (dual N1).
- Stock intake, Stock DP, Stock cat, Stock ECU
HC (ppm) Max @ 25 mph = 53, I measured 1,000+
CO (%) Max @ 15 mph = 0.52
CO (%) Max @ 25 mph = 0.50 - Measured over 3.0+
I know the tricks on how to pass the smog test. But i'm not worried about that, I'm worried about where these numbers are coming from? I'm a little bit concerned about something being wrong with the car, any opinions?
I was surprised I failed, seeing how I took most of my mods off.
- 95 FD automatic.
- Stock Mount IC (greddy)
- y-pipe.
- Cat-back (dual N1).
- Stock intake, Stock DP, Stock cat, Stock ECU
#2
Full Member
iTrader: (6)
Seeing that you failed soo horribly I would say your cats are bad and the air pump/air control valve system is possibly bad as well.
unless your running an aftermarket ecu and your tune is super rich.
I know you say you know the tricks but how long did you warm up your cats before the test?
unless your running an aftermarket ecu and your tune is super rich.
I know you say you know the tricks but how long did you warm up your cats before the test?
#4
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,832
Received 2,603 Likes
on
1,847 Posts
first step would be to check the air injection system, its critical. you will be way off like this without it.
the stock main cats are pretty bullet proof, but if you have an aftermarket cat that's more than a year old its probably hollow by now.
the stock main cats are pretty bullet proof, but if you have an aftermarket cat that's more than a year old its probably hollow by now.
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
alexdimen
3rd Generation Specific (1993-2002)
20
10-23-15 01:50 PM