bad computer??
 

Okay I really need some help I have a 1994 gt mustang, and my check engine light keeps coming on, Ive replaced everything that was coded in the ecm but it still comes on?? I replaced coolant temp sensor thermostat egr valve all these things but check engine light still on, code comes up for a coolant temp sensor. Do I have a bad computer??? I was told that if the computer in the car is bad my fan will run all the time it doesnt run all the time only after the can warms up, then it will not shut off until I turn the car off???? Help!!!!!

have you tried resetting your computer? Disconenct the negative terminal for about 5 minutes, plug it back and see if it happens again.

no i havent but I will this morning and see what happens

Did you replace the temp sensor or the temp sending unit? Where was it located?

I replaced the sensor by the intake up front, what else should I be looking for?