may be try this works on LS1 pcms and after market tacho.

May be this will help

Just checking in to see how tuning is going.

when done please tell all

No does not come out the white side clips are to lock it in the straight ahead position when removing the steering wheel works some time.

I have uploaded the ignition info I found for low rez. It shows how they switch the ignition using a 12200411 pcm. 4.3 lt Ign wiring.gif I was told the cam sensor is used to sync number one injector pulse I was told to wire the injectors as per the sheet I upload before. I was told that I had to rea...

The 2002 Chevrolet S-10 Truck Automatic L35 4.3 Litre (12212156) is a ls1 pcm and efi live has a custom 2 and 3 bar tune.
The pictures are what I made from the factory ones.
I was thinking the bypass wire should be wired to a 5 volt for the pcm to control from startup or switched in some way.

I looked at this a while ago found a 2002 Chevrolet S-10 Truck Automatic L35 4.3 Litre (12212156) wiring and tune file.
It uses only the number one coil driver and low res 3x crank.
this is what I was thinking of using. DFI. Injectors.

Here is how Holden did it with the LS1 utes and used the same Module for supercharged V6. normally we bypass them but now with bigger noisy pumps its time to put it back

When I first started tuning that was what I used on the road. was one of the first portable one that run on internal battery's. Then when EFI came out I used it with a graph book to map out fuel maps well before data loggers and laptops. in the good old days of analog system then came digital system...