1- you are the only optimistic person about the health of ECU.
2- We checked all the wires one by one by connecting one end with additional external wire and shorting it to the other end to make a loop to verify that we are on the right wire. this is the surety we have that we are looking at the right wires. another thing is that i have learnt during this process was that injector related pins send current pulses which are quite low if a tester is connected in between it gives very dim light on the other hand if we test other signals there is a bright light. (higher voltage)
3- what everyone thinks is that injector 1 related wires might have got short and burnt something back in ECU the whole ECU is not burnt only one pin is not giving the signal connected to a Power Transistor Array STA461C. I have read on Pakwheels thread somewhere about car drinking petrol like sharbat someone said this IC could have an issue and in my case the pin not working is traceable back to the same IC.
4 - i will try to get the whole harness out of car to make sure that these are right wires. also there is a grim hope that this signal might be depending on some other input which might not be giving signal to the ECU due to cuts (again i am assuming) so we might check continuity of all the sensors and wires to make sure every input and output is wired properly and see if the issue prevails then Allah khair kary i will have to do some expense.
but one thing is for sure confusing me that is ..... i am loaning signal from injector 2 to drive injector 1. still no misfire .. not able to understand why is the car so silent now.
the car should be misfiring but its not doing that.
in the earlier case when it was misfiring i was not getting any MIL for misfire and that makes me conclude that there is some "DHANTAR MANTAR" (USTADI) done on the circuit which can only be uncovered if i take everything out and fix it one by one.
this weekend will surely provide some opportunity for that.