Unplugging oxygen sensor

[project_x]

Hey,

So I'm throwing code 43, the car is bogging at all different speeds and I am leaning towards oxygen sensor based on past experiences on this forum, but I want to be sure before I shell out some money.

If I unplug the oxygen sensor, will the car still run okay? My logic is that if I leave it unplugged and don't experience the problem, the O2 sensor is at fault. Can the car run with it unplugged though?

Does the ECU go into a "safe" mode when it does not receive data from the O2. I've read the ECU doesn't read from O2 upon startup.

-Thanks in advance

i drove with mine unplugged for about 6 months. it didnt have any effect on the way my car drove.i put a new racing header on and didnt bother to install a new O2 and i just threw the old one away.i eventually had to put one on to pass emmisions tho. GL

[deevergote]

Without an o2 sensor, you are running in "closed loop" mode all the time. Basically, the ECU has no idea what the engine is doing, and it's just dumping enough fuel to be safe in just about any engine condition.

It's like feeding a dog, but not knowing if it's a Chihuahua or a Great Dane... so you feed it Great Dane amounts of food just to be safe.


Running too rich, as you will with no o2 sensor, can result in engine damage when deposits build up in the head.

[project_x]

Without an o2 sensor, you are running in "closed loop" mode all the time. Basically, the ECU has no idea what the engine is doing, and it's just dumping enough fuel to be safe in just about any engine condition.

It's like feeding a dog, but not knowing if it's a Chihuahua or a Great Dane... so you feed it Great Dane amounts of food just to be safe.


Running too rich, as you will with no o2 sensor, can result in engine damage when deposits build up in the head.

I would go by what hes saying^^LOL^^I need a rebuild anyway before I do my turbo setup so i'm just dogging it right now.