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Cooling over heating ECU 700 1990

Well all the smoke leaked out of my ecu so i parked it for about a month till i got a replacement. It failed full rich mode. Meanwhile i replaced the cold start injector, sent the other injectors out for rebuild, and in the process broke off the top radiator connection...had a new metal 3 core already since the old one is going on 15yrs. Got it all back together and now it pegs the temp gauge before i can get 3 houses down the street. Replaced thermostat, still does the same thing. Besides that the power windows now dont work.
check the fuses-ok. then i notice relay J is for the window winders/electric fan? anyway the top and bottom hoses are hot but the radiator is cold, did i get a brand new blocked radiator....and what the heck does the electric fan have to do with the electric windows???







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