i bought my PFC used from a member here .. but the car dont want to start with it , the check engin dont light up but the commander does . can someone help me with this ? or the pfc is dead or something?

 

The check engine light will not work with the PFC unless a mod is done to wire in the PFC to the ELD unit.

If your engine is stock, then make surte the PFC is set for stock, or re-initilaize it back to stock.
If the engine will start with the stock ecu and not with a PFC, then it is hosed.

 

Cewrx7r1 will a car start if the 4 wires that are supposed to be cut aren't cut? or does it just cause other problems but will still at least run intially? Sorry for my ognorance on this one, I got my car with the PFC already installed so I didn't expereience this part?

 

the stock ecu work a1 , the pfc got the stock map in it ...