2.. canadian version the califorina ones have 3 or 4 o2s
i tried unhooking the 2nd o2 sensor that never fixed the issue of the magicaly rear lights on lol

 

I would try to figure out why only some of the injectors are firing(no ground from the pcm). Sounds like an issue with the pcm. Did you by chance check the ground going into the pcm?

 

ya and i did get the Injectors firing i mentioned it above.. PCM fires 7 out of the 8 i mention because i still unable to remove it..
the 3 injectors that werent firing... are firing once i unhooked the fender connetor... and retested things, as i unplugged everything and testing i cleaned grounds polished the computer ground and all the grounds.. i think it is the wireharness from fender to the the lights
something has to gone wrong.. i got a parts truck i gonna try.. and if that doesnt work i gonna run a new wire or take the wireloom apart and see if something melted in there or wire eaten by mice or something..

so hoping to try that today hoping it is the issue and hoping its fixed..

 

so i mannged to fix it but its throwing a P0138 code
so what i did was i took the other harness off from the truck.. and tested , but wasnt running. thats the C129 harness to the back of the truck.. and they both different.. this only had some pins mine had all pins
in end i cut off the ground wire to C129 and ran a new wire to a ground by the pressure washer.. as that ground was giving me false positive
the FSM does not tell you what C129 ground connetor it uses.. yet says ground/connectors.. so FSM kinda miss leading as it doesnt stat where on the truck the C129 Ground wire goes in the engine compartment.
but its running. lights no long short out .. etc..

 

That's an O2 sensor code..... If you weren't getting that code before, time to have a look at the wiring.... (sorry....) verify the wires go to the correct pins on the connector.

 

P0138 O2 Sensor 1/2 Circuit Voltage High. That's the 02 after the one on the cat(down stream).

 

ok i got it working.. i had pulled the battery off and let it drain computer 5 min and i shoved that connector unplug plugged unplugged plugged multiple times..
it seems to be working..drove it for a couple hours.. and gone green.. so finally working.. i dunno if code reader was erasing the codes really so i pulled battery

so im guessing, wishing the FSM showed where 129 wire harness where its ground goes.. so i can unhook it.. as this weirdness must be touching power.. or could all that be just C129s bad ground connection.. i couldnt find it i didnt pulled things apart to find it.. as the truck is working lol

and i dont even know what this black module behind the brake fluid reservoir.. has 2 connectors.. but least the truck running dont need to pull wires.. its amazing how 1 wire can screw up the whole truck shorting multiple systems.. like the injectors, tail lights brake lights multifunction switch

and i thank you heyyou and the others for the help... what a pain eh.. so if anyone elese has this issue they know probably the C129 ground wire is the problem