I have a 99 blazer, I've had a problem with the electric system, i.e. the fuel pump works but both the pump and the injectors don't get any power. The pump only works if you create a bridge with a wire. Is it possible to get like an electric scheme about it?
Could the problem be caused by the security system? If so, is there a way to sort it out?
Thank you,
Simone

 

Depends on what security system you have, aftermarket or factory installed. Passlock shuts off the fuel pump circuits to disable the vehicle.

 

I've installed factoy's security sistem

 

You have installed the factory security system or your truck came from the factory with it?

 

My truck come from factory with security sistem