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Old 10-15-2013, 12:26 PM
trevorm2 trevorm2 is offline
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Location: Newport Coast
Join Date: Oct 2013
Posts: 1
Mein Auto: 1996 BMW Z3
CA Emissions Failed

I have a 1996 BMW Z3 with 1.9L. It has roughly 160K miles on it. I run 91 octane gas in it. I recently replaced the cat because of the CEL (code) with a magnaflow cat.

I am trying to pass the SMOG test in CA and have run into an issue. Looking for some ideas on what I need to look at to fix the issue.

Here are the numbers from the test.

@15 MPH 1957 RMPs
%CO2 14.6
%O2 0.1
HC (PPM) 2
CO (%) .01
NO (PPM) 804 FAILED (Max allowed 459)

@25 MPH 2090 RMPs
%CO2 14.6
%O2 0.2
HC (PPM) 0
CO (%) .00
NO (PPM) 74 PASSED (Max allowed 746)
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