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I have an 87 190E 2.6 with 115K on the clock. I got the dreaded registration renewal in the mail that stated that I had to have the car smogged at a "Test Only" station. So I changed the O2 sensor last night just to be on the safe side. The car has had new plugs and ignition wires within the 3K miles. All morning I drove the car hard to really heat up the cat. Took the car into the test only station...and she passed. I have to say waiting for the results felt like I was back in college waiting for my girlfriends pregnancy test results. Now as I look at the report it looks like they made a mistake in that it says the car is a four cylinder 2.3L. Oh well, I figure the 2.3L passing limits are lower if anything. Here are the results:
15mph RPM 2225 CO2% 14.6 O2% 0.4 HC ppm 66 (Max 118) CO% 0.21 (Max 0.75) NO ppm 699 (Max 799) 25mph RPM 2769 CO2% 14.4 O2% 0.6 HC ppm 44 (Max 93) CO% 0.07 (Max 0.63) NO ppm 334 (Max 738) |
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