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-   -   Any reason for no signal from Lambda O2 sensors? (https://www.jaguarforums.com/forum/xj-xj6-xj8-xjr-x350-x358-28/any-reason-no-signal-lambda-o2-sensors-256427/)

jeremy_watson 02-21-2022 11:24 AM

Any reason for no signal from Lambda O2 sensors?
 
'08 n/a X358, 80k miles. I think my old scanner is just not up to the job and so I am about to replace it. Specifically right now, it just shows zero signals from any of the O2 sensors. A visual inspection shows them all to be in place and plugged in. I can't believe I would actually have a problem not reading ANY of them. It must be the reader, right? I have no O2 sensor CEL codes (although I'm fighting bad MAF/running rich in both banks codes).

Is there any chance that points to a different, real problem, or should I just go out and buy a newer scanner?

Many thanks!

Wingrider 02-21-2022 01:32 PM

A Jaguar specific reader is a must, to read many Jaguar codes.

Most any scanner should read the O2 sensors, they are needed for emissions

jeremy_watson 02-22-2022 11:19 PM


Originally Posted by Wingrider (Post 2499295)
A Jaguar specific reader is a must, to read many Jaguar codes.

Most any scanner should read the O2 sensors, they are needed for emissions

Any scanner you recommend?

GGG 02-23-2022 02:11 AM


Originally Posted by jeremy_watson (Post 2499889)
Any scanner you recommend?

See the FAQ's ('stickies') at the top of General Tech Help forum for extensive discussion on code readers and scan tools.
https://www.jaguarforums.com/forum/g...-%2A%2A-33347/

Another dedicated to the 'factory' SDD (Symptom Driven Diagnostics):
https://www.jaguarforums.com/forum/g...d-truth-32683/

Graham


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