My fan! on 1995 Saturn SL1

I replaced the temp sensor in my car and before that my fan didnt work and now it works but my engine light comes on and it does this before it gets hot probley about the quarter line! Dont know when the fan is suppose to come on! Could i have boughten a bad sensor and my other one had been good? even tho the fan didnt come on with that one!

Asked by for the 1995 Saturn SL1
no, but the connector could be the issue as it was common for the connector to fail.

1 more answer
I assume you mean the check engine light. What are the trouble codes?
Roy is correct. Saturn is known for power connections and wiring.