What module to get, gauge and sensor out of stock?

Hello, i drive an old manta b with a le jetronic system , its mechanical injection with a mechanical ecu.

I need the afr reading to be able to tune it, will the slc free 2 suffice?

what is the difference between the slc free 2 and the spartan 3 lite?

What is the difference between lsu 4.9 and /adv (4.9 is out of stock anyway so am i forced to get the adv?)

What do i do since the gauges are also out of stock on the website?

Thank you

SF2 will probably suffice.

SF2 is a value product. S3L is a high performance and high accuracy product.

SF2 integrates a Display.

There is little difference between the LSU 4.9 and LSU Adv, but S3L is able to extract 20x more Lambda resolution from the LSU Adv. No other system does this.

SF2 is only compatible with the 4.9

SF2 and S3L output a standard 10AFR@0v linear to 20AFR@5v. Most gauges are compatible. My gauge supplier went out of business, I am in the processes of qualifying new gauges.

The Bosch LSU I got from you have been the last legit ones I got. Surprise, Bosch makes them in the USA. Please try to find some trustworthy source. All other ones I got later or some customers brought, have been cheap copies with all Bosch writing lasered on them. Most worked for less then 3 hot/ cold cycles, none lasted. I was used to LSU’s lasting 10 years. Even large, old parts suppliers I know for all of my automative life, sell fakes. You can not tell any difference to the real one. Not with packaging or the thing itself. This must be a PITA if people complain about your products, while in fact they got a fake LSU which quit after 2 hours. God knows what readings these fakes give if they work. Keep on the good work, cheers from Germany, Chris