Oxygen Sensor Questions I Haven't Seen Yet

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rallysam
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Post by rallysam »

dzx wrote:When its directly after the turbo. Like a couple inches. I would post a pic, but nasioc is down.
Are you talking about a stock-type sensor or wideband? The stock O2 sensor on an SS is located about 0.5" from the turbo.
Last edited by rallysam on Wed Oct 26, 2005 2:00 am, edited 2 times in total.
'00 Impr RS - sold
'91 Legacy Turbo 5MT - mothballed
13psi, TurboXS TBE, WRX IC, Hallman MBC, TurboXS FCD, KYB AGX, Phil's STI seat, SPT short shifter, David Carter hood, Zeitronix widebandO2, Kuhmo rally tires, STI IC spray, thanks:gearboxtech.com
rallysam
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Post by rallysam »

rallysam wrote: Ok, well I guess I will give the stock location a shot and see what happens.

Update -
I installed my wideband in the stock location and it seems to work ok. Haven't noticed any problems yet.

I was getting AFRs of:
* 14.5-15.0 at idle or light cruise.
* 11.x at WOT
* readings all over the map during a gear shift (rich or lean)

I got those readings with the O2 input to the ECU disconnected, then I connected the "simulated narrowband output" to the ECU's O2 input and got basically the same readings.

AFAIK that seems right
'00 Impr RS - sold
'91 Legacy Turbo 5MT - mothballed
13psi, TurboXS TBE, WRX IC, Hallman MBC, TurboXS FCD, KYB AGX, Phil's STI seat, SPT short shifter, David Carter hood, Zeitronix widebandO2, Kuhmo rally tires, STI IC spray, thanks:gearboxtech.com
Legacy777
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Post by Legacy777 »

Sam,

What wide band do you have?
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
rallysam
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Post by rallysam »

Legacy777 wrote:Sam,

What wide band do you have?
Zeitronix meter, which uses a Bosch sensor. Seems pretty cool so far... but I only have about 5 miles of experience with it.

http://www.zeitronix.com/Products/zt2/zt2.htm
'00 Impr RS - sold
'91 Legacy Turbo 5MT - mothballed
13psi, TurboXS TBE, WRX IC, Hallman MBC, TurboXS FCD, KYB AGX, Phil's STI seat, SPT short shifter, David Carter hood, Zeitronix widebandO2, Kuhmo rally tires, STI IC spray, thanks:gearboxtech.com
Legacy777
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Post by Legacy777 »

Thanks.

Looks pretty cool. Let me know how you like it.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
vrg3
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Post by vrg3 »

dzx - Yes, in principle having the sensor too close to the ports could make it read rich.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
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