Sensor problems

[mitsueclipse2g]

I recently changed my coolant temp sensor and the car started acting strange. It won't turn on the fans at all. We found out that the plug for the coolant temp sensor has a power wire that came off alittle. We tested the other sensors such as maf and temp switch and they are giving off weak signals. Could this be a bad engine harness or just the sensor plug draining all the power from the other sensor.

 

[spyderturbo007]

Have you taken a good look at your grounds, such as for the battery and to the firewall?

 

[mitsueclipse2g]

The battery is fine, all the ground spots were cleaned.