Problem Solved.
Thanks everyone for the feedback and advises.
My problem is what everyone normally has with these cars at this age.
Throttle Body with damaged insulation - Fixed by BBA
Shorted E-GAS module as a result of defective ETA - Used E-GAS installed/works like a charm
No more ASR light or rough idle.
It now has new/correct Bosch spark plugs
New spark plugs wires
New/Used Coils
Reconditioned Fuel injectors
New fuel Pressure regulator
Good ETA with warranty
OVP is here, just have to replace it
I'll post some videos with the suspension work i've done and fuel injector servicing