O2 Sensor Confusion

Civic/Integra/etc with a K swap
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mattj
Posts: 10
Joined: Mon Apr 16, 2018 1:13 pm

O2 Sensor Confusion

Post by mattj »

Hi! I'm a new Ktuner user and new to the Honda crowd in general so please excuse my ignorance. I'm running a 2008 TSX engine with a 03-05 Accord RAD ECU and Hybrid Racing conversion harness connected to an 03-06 Element engine harness. The only engine mods are 50 degree VTC gear, Skunk2 intake and cable throttle body.

I'm confused as to what O2 sensor to run. Hybrid says 03-04 RSX-S - I have this one but it eventually stays in open loop due to a P1157 code. Another source says I need to run an O2 from an 03-06 Element because that's what my engine harness is from. If it helps, the sensor signal wires are tied to A28 and A31 pins on the ECU connector.

Do I need to run a 05-06 RSX sensor? Will a TSX sensor work? I have TSX and I can swap the plug to match the harness, it would save me $150.

Thanks!
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: O2 Sensor Confusion

Post by KTuner »

An 03-06 Element, 03-05 Accord, or 05-06 RSX sensor is what you need.
mattj
Posts: 10
Joined: Mon Apr 16, 2018 1:13 pm

Re: O2 Sensor Confusion

Post by mattj »

Thank you.
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: O2 Sensor Confusion

Post by KTuner »

No problem
knox839
Posts: 10
Joined: Mon Oct 26, 2015 7:26 pm

Re: O2 Sensor Confusion

Post by knox839 »

KTuner wrote:An 03-06 Element, 03-05 Accord, or 05-06 RSX sensor is what you need.
-Can I use this sensors for WOT tuning also or just for closed loop?
I have a RAD ecu on jdm cl7 euro r (oem jdm euro r harness also).

-Here is not the right place sorry but I need to ask how can I tune rad ecu calibration to tune 50 degree vtc. Calibration only has 0,10,20,30,40 and I couldn't edit this.

-ıf I use prb reflash 3 calibration I can tune to 50 degree vtc but my rpm, speed ,check engine light and ac did not work. I think it becuase of different multiplexer (I’m not sure) is there any chance to you add selectable multiplexer in next versions software update ?
KTuner
Site Admin
Posts: 3744
Joined: Mon Jul 22, 2013 8:13 pm

Re: O2 Sensor Confusion

Post by KTuner »

They're wideband sensors.

Breakpoints are defined in the codebase. It will use the 40 when you command over 40. There is no need to run at 50.
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