Thank you all for your advise
I agree about the engine wiring harness it definitively needs to be replaced is just falling apart and as mention it may be the cause of many of the problems the car is experiencing right now
Everything was working fine until I went to fix a coolant leak at the rear where the hose goes into back of engine block and I have to move out of way the harnes close to the hook up for the fuel injector and when I've put everything back together and started the engine it started running very rough, like one cylinder is not working or something

Thanks again for the help
Happy holidays
Oscar

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Bluerio