hey everyone, i had previously 2 codes p0201 and p0301, so i changed all spark plugs, all injectors and also tested with a voltmeter the voltage for each injector (11.65 - 11.68v), then I removed the battery terminal for a computer reset and i still have the p0201, the code for injector no. 1.
What else should i check or change? if anybody knows much appreciated.

 

Dont know if this helps but i'll try.

301 is a misfire on cyl 1.
201 looks to be an injector circuit for fuel injector #1 <-- this is for direct injection injector NOT for the port injection.
What injector(s) did you replace?
Direct injectors are controlled by DRIVERS.
If either the Driver and/or the direct injector malfunctioned, it will trip a code.
Possible problems:
--- Direct injector #1
--- Driver for direct injector #1
--- Wiring
Note -- ECU <--controls the drivers

 

I changed all 8 injectors.
yes i was thinking of the injector driver controller (IDM) on top of the manifold.
On all injectors i have 11.68v DC so the circuit seems good, no short or nothing opened, but I'll check it again.
Im thinking if one of that module is out this means that the whole bank surfers right? (all injectors)