I used a dmm and the injectors are only getting 5.7-5.8volts with the key on, the battery is at 12.2. So shouldnt they be getting 12.2volts or right around there?

 

no they dont get 12 v. I dont remeber if is the 5v range or 6 tho.

 

most sensors operate on 0-5v scale. obviously not all but most. Any reason you are testing voltages at injectors?

 

My injector scalings are almost double what others have them set for and the car still idles lean. I boost leak tested and there doesnt seem to be a boost leak, but im gonna double check today.

 

5V reference, so what others stated.

 

why do the injectors only get 5v and not 12v?

 

Thats what i dont get. I mean why then do we dial in injectors using volts from 4-18v?

 

i'm 95% sure that the stock injectors are 12v driven with the earth switching via the ecu.
if it was 5v they would never open and if they did it would have massive deadtimes and latencies...

if you're only getting 5v, i would check the voltage on your output relay.
If thats 12v at the relay, maybe your capacitors are blow or partially shorted out etc