Hi I got p0138 code for 02 sensor downstream and changed it but instead got 2 red symbols first I got 3 red symbols blinking cat evp and o2 sensor. Now cat symbol gone left with only 2 one for evp and second 02.gas mileage showing very poor. Any guidance will be greatly appreciated. Thanks sandeep
How many km on the vehicle, and does it burn any oil? Did you replace the downstream O2 sensor with an OEM sensor (denso / toyota?), or something else? Which adapter/device/App are you using to scan for OBD2 codes (DTCs), and what are the DTCs currently?
