which sensors are needed to run the 4l80 besides the tps and the one in the back of the block? I"m getting a wiring harness and need to know which sensors for them to send with it. what is the function of the sensor in the front cover? is it just for the db4 setup?

TPS and the engine speed sensor goes in the oil pump shaft gear, the input speed and output speed are on the 2wd tranny.

which sensors are needed to run the 4l80 besides the tps and the one in the back of the block? I"m getting a wiring harness and need to know which sensors for them to send with it. what is the function of the sensor in the front cover? is it just for the db4 setup?

I guess you are looking for the engine sensors? It probably depends on what computer you are using, but most factory TCMs have inputs for AC request & a baro sensor in addition to the TPS and engine speed sensor. The front crank sensor sends a digital signal and probably won't work with your trans computer (again, it depends on what TCM you are using). You probably only need the TPS & ESS, but I would use every input your TCM has.

I'm looking at getting a 94 p30 computer. you still selling your conversion manuals bobbie? Probably need to get one of those.