Hondata

Hello , I have been battling a issue. I have connected my apsx wideband to my kpro v4 everything works correctly all settings in kpro are good and analog input to the kpro reads perfect , but as soon as I crank the engine on ,the analog input for kpro stops reading .. It will somethimes flicker back on and work for a few seconds

How exactly do you have this wired?

Hello , on the wideband I have red to 12v fused, black to ground , and the white analog output from the wideband is connected to analog input (an1) and the settings are adjusted to use this analog , the kpro will show it working properly with key on engine off , but as soon as the engine is started the kpro will quit reading the analog input

Where do you have the power and ground connected?

The wideband is getting 12v ignition , and I ran a ground straight to the battery ground terminal to see if that helped. But same issue , wideband works properly on kpro with engine off key foward , but when the engine is started the kpro shows its not getting analog signal

The wide band stays on when the car is started just the kpro doesn't read the signal anymore of the wideband

You still have not told me exactly where you have the wiring connected for this.

Red wire To the factory o2 sensor power wire
Black wire to battery ground
White analog from wideband to hondata duagther board an1 wire (inside the ecu)

Do not use the o2 sensor wiring for power. Use a switched source from the under dash fuse box. There should be extra spots that you can use a spade connector to connect.

Ok I'll test ur theory and update