Hey guys im in the process of doing my glowplugs and just noticed that the driver side rear injector electrical plug is blue and not white like the other three. it also says LL on it. It looks oem but im just curious if thats normal?

 

If I'm not mistaken its the AD injector with the "long lead" version in cyl #8. (stock)

 

sounds good. the lettering on it looks perfect but the others look to be wearing off (the black paint letters) thank you for the response