Hello.
So i have a strange symptom.
My car is a 1.6sr 95 D16y2 (D16z6 similiar).
Recently the idle is shaking and when fully warmed up slight gas around 2500rpm knocking/rattling (maybe spark knock).
O2 sensor readings show 0.02v at idle so i changed two o2 sensor, still the same.
So i datalogging with Hondash and the ecu dont use closed loop, afr at idle goes up to 17+, no stft and no ltft, ecu dont tune extra gas.
My question is still o2 sensor fault or my Ecu is dying.

Thanks for the help.

 

Are you using a stock ECU or something that is chipped or tunable ?

 

In my knowledge the engine is stock, only replaced internals ( rings, bearing, etc).
Ecu is stock too, but i want to take out and check it.