Hi folks,

I'm trying to rectify misfire codes for all cylinders.

The engine does not demonstrate a miss, but has an idle when warm, that rises and falls approx 100-200 RPM.

I had a tech over with the latest scanner and suggested a new set of 02 sensors.
From Jaguar's site, with VIN A25951, I need LNE1684BB Grey upper sensors and LNE 1682 BC black lowers.

Looking at Rock Auto:

https://www.rockauto.com/en/catalog/...2)+sensor,5132

there's quite a big price difference. I know NTK and Denso has good reputations, but what do others think please. The Denso and NTK's uppers are $300 each, the Walkers are $112.

Thanks in advance,

Rob

 

Do the fault codes specifically point to the O2 sensors? The ECU monitors the performance of these sensors very closely and any deviation from standard behaviour will usually be logged.

Richard