Hondata

Problem solved, made a stupid mistak. Checked the ecu, it is a prb. The map that was installed on the ecu previously was made on a pra basemap. So it had the pra software. Just used a prb ecu and the wideband works again!

Don't have the original ecu anymore. How much Harm can it do driving in open loop? Not using the sensors At all. I can hook up a separate wideband at my tuner (sneaky tuning in the netherlands)

I'll add the datalog, as you see it does read the o2 sensor (wideband denso) at this point.
At the moment it doesn't anymore, so i guess the wideband sensor has died on me.
Is it possible to use a narrowband to function for the closed loop?
I can always use an external wideband for tuning purposes.

I just checked an old datalog. And it did read the voltage of the primary o2 (denso wideband). However it seems it didn't give out an a/f ratio. Voltage was between 0 and 1 volts. At the moment it constantly reads 0 volts, and gives the p135 error code.

Ok thanks, so which sensor would i need for the kpro to read it?

Hi guys,

I'm running a Kpro V2 on a PRA ecu. This is put in my dc5 type r (which has an PRB ecu stock).
Now my o2 sensor doesn't read the volts. So it gives a constant a/f of 14.7.
I'm not sure if it was like this from the beginning, i thought it was reading fine at first.
Do i need and narrowband ...