[s-cars] Failed Emissions - NOX Too High - Help please

[FvAMI at aol.com]

In a message dated 4/12/04 8:22:09 AM Pacific Daylight Time, 
mark.pollan at mci.com writes:


> April of '02 emissions show all gas readings WAY below state levels.  Car
> has MTM 1+ from Anderson installed a few weeks after the April '02 test.
> 
> 
> 
> Any ideas on things to check greatly appreciated.  Would a bum ISV
> potentially be the issue?
> 
> 
> 
> Regards,
> 
> 
> 
> Mark
> 
> 95.5 S6
> 

Is this done on a Dyno?

A good reason to have a VMAP ... set it back to 2.5 bar and plop in the old 
stock chips ... drive the car for 50 miles and should work well. 

I have not recently looked at the code for MTM but it was originally written 
for the ADY ECU ... I thought the values under 35% load (free revving) where 
similar to stock. So I would expect it to pass if is a none dyno test.

I just smog tested my car ... reset it back to stock. It passed and was 20 
PPM (65 PPM Max @ idle) higher than 2 years ago ... I now have the RS2 
turbo/Cam. They however did not test Nox.

Best regards,
Feico van der Laan