Question/Concern with o2 sensor output...

Joe · Newbie Joined: May 22, 2006 Posts: 2

I am currently working on installing this system on my 2005 Scion tC. I'd like to use the target a/f feature on this system so I can control closed loop fuel curves, which is where I spend most of the time with the car. The issue I'm having is this: Toyota actually used an OEM Wideband for the primary o2 sensor on the tC. The secondary o2 sensor is a narrowband. Now the big problem is that the masking system built into the PCS is for narrowband only. How can I go about adjusting the o2 signal from the stock wideband and send a modified signal to the ECU, preserving the wide-band voltage. I also have an AEM wideband installed as well. Any help would be greatly appreciated. Thanks.
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282whp, 293wtq Scion tC with stock motor

jballenger · Posted: Tue May 23, 2006 5:46 pm Post subject:

The sensor on your application appears to be quite different from the standard narrowband sensors on most vehicles. It is also different from a true uego nernst pump cell type o2 sensor. This is something that we are working on presently. It will require some minor changes and will take some time to implement but we do plan to have a solution for your vehicle in the near future.
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James Ballenger
Forum Administrator

Joe · Newbie Joined: May 22, 2006 Posts: 2

Thanks. The other guy I work with gave you guys a call today and I guess a plan is already being implimented.

I look forward to the results thanks for the fast reply.