Does the early fuel level sender (1983) with 2 light on instruments (yellow 7 ltr, red 5 ltr) could work with newer instruments (1986) with only one light (red 5 litr).

Thanks

No, it`s two quite different systems. Also the pcb`s in the instrument cluster is different.

thanks Inge. When I connected it, last year, red light worked only with almost full tank. Now it doesnt at all except really week red glare in 5 ltr light