Lucas Fuel Injector D3165KA vs D3165AA
 

Anyone know the difference?

The AA has a green band, the KA has a red band.. but they are both 3165's

Both have the double barrel fuel outlet on the bottom.

??

Hi Kev,

The Technical Service Bulletin attached and at the link below indicates that the green-band AA injectors replaced the red-band KA injectors:

http://www.jagrepair.com/images/TSB/...tification.pdf

Apparently the red-band D3165KA injectors are the version installed in the factory, but when Jaguar service departments replaced defective injectors they were to use the green-band D3165AA injectors, which must be the later version. My guess is that there may be a slight difference in flow-rate, which the ECM will adapt for by adjusting injector on-time/pulse width, but the impedances should be very close if not identical.

Cheers,

Don

Excellent documentation Don!

I couldn't find the difference anywhere :)

PM coming~