I have a 2007 chevy impale code is reading injector circuit open cylinder 5 whatvcould this be I've replaced injector and wires

Ohm the injector. should be low ohms maybe 10+ ohms.put the key on and take a voltage measurement on each injector 5 wire and you should get 12 volts. If you get 12 and 0 then its most likely an open injector or short to geound on the control wire. Does it run rich? White smoke any,

Yes it gives off a funny smell but no white snow just shakes when sitting at a stop

The injector is under the intake it's hard to get the reader inside

Were would the control wire be located and if it's a open injector how do I go by fixing that

Were would the control wire be located and if it's a open injector how do I go by fixing that

If the injector is causing the open corcuit bc of hogh resistance ull just have to replace the injector. think of it like when a heater element goes out in your dryer. Same kinda concept. If the injector isnt accessible u can always get a pcm pinout and go to the pcm and do a voltage measurement for that control wire.. 12 volts wld be a pcm problem