05+ Passing Smog Test

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03-24-2008, 05:34 PM

#11

05Saleen#243

3rd Gear Member

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Join Date: Aug 2007

Location: California

Posts: 523

RE: 05+ Passing Smog Test

Thanks Polk. That's what I was thinking/looking for.

03-24-2008, 06:01 PM

#12

mills281e

4th Gear Member

Join Date: Aug 2006

Location: IL

Posts: 1,598

RE: 05+ Passing Smog Test

Quote:

The cats are what matter. It doesn't matter if they they look at part of the 'output' or all of the 'output', the A/F ratio will be the same.

+1....after you've had aftermarket work done (or even stock), tunes typically run lean at idle (higher A/F ratios). So the sensor for unburnt fuel usually doesn't pick anything up.

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