If my car didnt come with an o2 sensor and i wanted to install one what components are needed?
also if i add the orange relay into the empty slot next to the fuel pump relay will this allow the ecu to read the signal from the sensor or does the ecu need a new chip?
also if i add the orange relay into the empty slot next to the fuel pump relay will this allow the ecu to read the signal from the sensor or does the ecu need a new chip?