Early in the 70th they put electronic injection on the 12 cyl engine. Using a 4 cyl ecu
The injectors fires in two set, with two trigger signal from dist, 6 injectors first and next 6 next time.
So I do the same. Can't see any problem with that. But TS gives strange injector times. Required fuel for 5.3 liter engine gives very long injector time.
Found one fault today in the car. When they change the engine they put wrong rotor in the dist. My trigger signals look fine om bench. But did look at them in car a see ugly signals. Took a hall sensor trigger board an notice bad signal from it. Then I change the rotors and suddenly I got nice signals from them. Lousy trigger signals gives wrong injector time, I will put all together tomorrow and try start again.
My tune it not worth look at
I change it all time.