O2 sensor?

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Amigoo33
Posts: 16
Joined: 09 Apr 2020, 13:52

O2 sensor?

Post by Amigoo33 »

Hi. I have 2011 Citroen relay 2.2 120. Where is an oxygen sensor? Not on cat. Dont even see a wiring for it. How does it see fuel trims?

Amigoo33
Posts: 16
Joined: 09 Apr 2020, 13:52

Re: O2 sensor?

Post by Amigoo33 »

Anybody?

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Paul-R
Donor 2020
Posts: 4153
Joined: 07 May 2009, 16:24
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Re: O2 sensor?

Post by Paul-R »

Would a diesel engine even have an oxygen sensor? Why do you think it would have one?

Amigoo33
Posts: 16
Joined: 09 Apr 2020, 13:52

Re: O2 sensor?

Post by Amigoo33 »

Thats actually a good question and i feel a bit stupid now but i worked on few bmw and i remember them having a sensor on cat. So how does a computer know if an injector isn't pouring loads of fuel?

Amigoo33
Posts: 16
Joined: 09 Apr 2020, 13:52

Re: O2 sensor?

Post by Amigoo33 »

Just realised everything. Newbie... had a decent brain fart. All this isolation probably. Anyway thanks for you help to make me think again.