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Old 05-02-2005, 05:06 PM   #1
005sti
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Join Date: Dec 2004
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Location: 12.81 @ 106+
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DP stockcatbckpro-
tune301wtq 289.7whp 93oct

Default is stock o2 sensor on 05 sti wideband?

went to speedshop today to get autometer narrowband a/f gauge for my 05 sti...would not work...call to autometer to find out (i didn't actually talk to the autometer rep) that it will not work because the 05 sti has a wideband O2 sensor stock, as opposed to the narrowband unit used in previous years. anyone know anything re: this...and what is my least expensive option for monitoring my afr
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Old 05-02-2005, 07:04 PM   #2
serendipity
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It is an AFR sensor, and not just an O2 sensor. I hesitate to call it a wideband, because its effective range is not as good as a true wideband, but it does indicate an actual AFR, unlike O2 sensors which just tell you which side of stoich you're on. It is not particularly straightforward to tap into the sensor and do anything useful with the readings. Your best bet is to get a wideband O2 sensor, like the TurboXS Tuner, which has a much wider effective range.
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Old 05-02-2005, 08:03 PM   #3
MattSTi
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The readings from the stock o2 sensor are not accurate enough to tune safely. There are numerous options for widebands including the innovate lm series and the turboxs tuners. I personally have a tuner pro which also offers knock detection. I had the sensor bung welded into my turboxs downpipe. If you have a UTEC your best bet would be either the tuner or tuner pro, although they are a bit expensive they allow you to integrate accurate AFRs into your logs. If you simply want to monitor your afrs, and not so much log them for tuning purposes you could try a setup like this:

Gauge:
http://www.egauges.com/vdo_mult.asp?...Z-Series&Cart=

Sensor:
http://www.egauges.com/vdo_send.asp?...n_Sensor&Cart=

hope this helps

-Matt
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Old 05-03-2005, 08:24 AM   #4
005sti
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tune301wtq 289.7whp 93oct

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Thanks much for your info
-Trey
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