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Old 01-10-2008, 02:11 PM   #1
sciroccokid
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Member#: 122356
Join Date: Aug 2006
Chapter/Region: NESIC
Location: Boston
Vehicle:
2002 Impreza WRX
World Rally Blue

Default O2 sensor, will wideband pass emissions

So i failed my inspection, due to a bad o2 sensor. Not a big deal as I need a wideband o2 anyways due to my catless dp. However, will a wideband 02 sensor pass Massachusetts inspection?

Thanks,

brendan
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Old 01-10-2008, 02:29 PM   #2
MasterKwan
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Member#: 98961
Join Date: Oct 2005
Chapter/Region: MAIC
Location: NOVA
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2003 WRX
Black

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Nope on the wideband. Which O2 was bad? You have 2 you know.
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Old 01-11-2008, 09:50 AM   #3
x99percent
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Member#: 27108
Join Date: Oct 2002
Chapter/Region: MWSOC
Location: Detroit-ish, MI
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2004 STi
2004 A4

Default

You can replace the rear O2 sensor with an LM-1 or LC-1, and program one of the analog outputs to act like a factory rear O2 sensor.

If you were to do this, you would also need to disable the CEL for "heater circuit open"... possibly some others as well.
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