Hi,

A question to the wiring gods of the forum! Or grateful to be pointed in the direction of a company that really does know their stuff with this.

I've got an Integra R K20A engine (not K20A2) with a PRC ECU, so genuine JDM import. The ECU is throwing an oxygen sensor code. I've replaced the sensor with an aftermarket one but it's still throwing. From what I've read this is some sort of hybrid sensor, neither narrowband nor wideband.

I've measured the voltage at the wiring. The heater wires are getting battery voltage. The sensor wires open circuit measure about 0.29v; I assume that a current is usually put through a cell.

Firstly, does anyone have a links to a sensor that's definitely worked with this ECU? That's the first thing to rule out.

Secondly, any general expertise is welcome.

This is NOT a K20A2 engine, the oxygen sensors are different for that engine, so thank you in advance for your answer but anything related to a K20A2 or a PRA or PRB ECU will NOT be relevant.

Thank you!

 

Honda vehicles are very sensitive to electronic substitutions and fluids.
Meaning is to avoid MIL or CEL, it is best to use OEM genuine Honda O2 sensors
And to always use Honda fluids
Aftermarket stuff is hit or miss.