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Old 01-26-2010, 03:05 PM   #1
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Join Date: Dec 2007
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92 VX failed smog too high HC

Anyone have readings from their o2 sensors? Either stock or otherwise?

I used this post to get my readings:
http://www.gassavers.org/showthread.php?t=2427

This is with the CA ECU on it.
(edit: went back and did my readings again, got a bigger differential)
During warm up it's random between -1.9 and 1.0
At idle it's at 0.3
Under light accel -0.5
Under heavy accel -1.9
Decel it goes to 1.9 then quickly back to about 0.3

I get a CEL of 48 for the LAF sometimes. I also failed emissions due to high HC. Actual around 180-220 when allowed is 140.

The code says I need an o2 sensor, but my readings show a good differential which means it's probably working right? Smog guy said it needs a cat, but that wouldn't effect HC much right?

I've done the usual oil, plugs, cap rotor, filter already. Ran some seafoam through the tank, intake, and oil and changed oil again, haven't retested yet though.
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