coil spring conversion complete on XJ8 L BUT , the bypass module did not clear the code light ...
Advice appreciated

 

If your car is a "2008 XJ8L 4.2 300 hp naturally aspirated" then you are in the wrong section of the forum.

This is the X308 1997-2003 section, I suspect you need the 2003-2009 X350/X358 section.

 

I have found benzworld very helpful. Reading through threads come up with surprises along the way in totally unrelated threads to the problem you are reading through. I highly recommend just wasting a an hour or two each day for a few weeks to catch up on Kodi noxKodi nox recent threads.