I have ignition problem occasionally. 2-3 times a month when I try to start cold engine red light for ignition check stay on and radiator fan is on althought engine is cold . Engine start with dificulties and idling until become warm, then everyting back to normal. All sensors are ok, even engine temp sensor replaced with new although old sensor was good.
Second problem: battery loses power. replaced with new - problem remains. alternator seems to work, output voltage measured 14.1 v.
Fiat service cannot locate the probled. They sad ECU didn't record any error state.
Please help