37820-PRC-013 Wideband O2 issues

K-Series Programmable ECU installation questions / support issues
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Hex
Posts: 4
Joined: Tue Aug 03, 2021 8:40 pm

37820-PRC-013 Wideband O2 issues

Post by Hex »

Hi

Need some guidance to get factory wideband working.

2005 Accord JDM CL7 K20A
ECU is 37820-PRC-013
Hondata info: Serial 10021, Firmware: 3.00, Software 4.4.60, ECU type: PRB - US RSX Type S

Currently there is no change in the Primary O2 current and the AF does not move.

* We have continuity traced all the O2 sensor wires / pins, they seem to be fine. Signal goes to A6, signal ground to A16 and there is heater voltage and
ground.
* We have fitted a new genuine sensor.
* Parameter menu, radio button set to "Built in wideband"

Anyone got any ideas?

Thanks
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Spunkster
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Posts: 23884
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: 37820-PRC-013 Wideband O2 issues

Post by Spunkster »

You need to try the ECU in a known working vehicle.

The K-Pro is not supported in an Accord.
Hex
Posts: 4
Joined: Tue Aug 03, 2021 8:40 pm

Re: 37820-PRC-013 Wideband O2 issues

Post by Hex »

Hi

Thanks for your reply. This is using an adapter loom (hence why we checked the pin continuity), and everything else works fine. As far as I can tell the O2 sensor is the correct one for the ECU. Any other ideas?
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Spunkster
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Posts: 23884
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: 37820-PRC-013 Wideband O2 issues

Post by Spunkster »

No, you need to try it in a known working vehicle.
Hex
Posts: 4
Joined: Tue Aug 03, 2021 8:40 pm

Re: 37820-PRC-013 Wideband O2 issues

Post by Hex »

ok thanks
Hex
Posts: 4
Joined: Tue Aug 03, 2021 8:40 pm

Re: 37820-PRC-013 Wideband O2 issues

Post by Hex »

Can't get a test vehicle. Can we send you this ECU? Must be some kind of plan b?
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Spunkster
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Posts: 23884
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: 37820-PRC-013 Wideband O2 issues

Post by Spunkster »

Where are you located?
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