V5 Bora Oxygen Sensor Replacement

[Alper]

Hi guys, i did some searching but didnt find any solid info regarding the 03 bora.

How hard is it to take the o2 sensor out?

anyone have pics of were bouts it should be. Im going to replace the downstream sensor as its buggered (i think)

Does anyone have the tool to scan the ECU?

[Bug_racer]

Its usually the first lambda that plays up , the downstream one is more of a measurer of cat efficiency

[Alper]

Its usually the first lambda that plays up , the downstream one is more of a measurer of cat efficiency

the car backfires, no idea when it comes to o2 sensors.

i was told the downstream was buggered