I didn`t read the heading you do say pass side , so you`ll look at pin 11 YW .
The ECU uses pin 11 AND pin 13 to alternately earth each bank .
Pin 11 uses YW yellow/white to earth cylinders 2 , 4 , 6 and 8.
Pin 13 uses YU yellow/blue to earth cylinders 1 , 3 , 5 and 7 .
The main relay , pin 87 power all the injectors via NO brown/orange .
If it runs on one bank you`ll have power to all eight injectors because it uses one wire the NO .
You should be able to check the continuity of the YW and YU wires by un pluging the ECU and check that the ECU pins 11 and 13 are earthing .
84/5 RR 4.0ltr Torqueflite Standard
93/4 RR 3.9ltr ZF Hard dash Vouge SE
94/5 RR 4.6ltr ZF Soft Dash Vouge SE
03/4 RR 3.0ltr TD6 GM HSE
Last edited by peter r; 04-04-2017 at 06:48 PM.