1995 Saturn SC1 Flashing radiator and temp lights

First of all thank you very much for your donation. So is your low coolant light flashing?If your temp gauge in the car is reading all the way cold then you need to recheck your wire's for damage. The yellow and the black wire's go to the bottom coolant temp sensor. The top gauge sensor on the engine is dark green.I also emailed to your personal email how to get your computer trouble code's please get those to me and let me know the number's. Yes this could effect your smog.

I see you didn't have any code's the bottom sensor with two wire's control's the engine coolant fan and tells the engine computer what temp the coolant is. The top sensor with the one green wire going to it only run's the temp gauge. Do you still have the temp sensor you took out of the top hole if so put it back in. As far as the low coolant light goes if your coolant level is filled to the bottle's seam then make sure your back up fuse is good in your under hood fuse box. Then unplug the coolant level sensor connector on the bottom of the bottle and jump across the two terminal's of the coolant level connector and see if the low coolant light goes out. Also inspect that green wire to the top temp sensor for the gauge for damage.

If saturn gave you the two wire connector for the top sensor then you have the wrong connector for it. They should have given you the single wire one you got the one for bottom sensor the coolant temp. The top sensor I would just call the gauge sending unit. Saturn used to have a parts diagram on the computer you could point out what you needed. You need to get the correct connector for starter's. As far as the sensor goes I would say the top one is different because the top one's had a brass tip while the bottom one's had a plastic one untill they change the bottom ones tip to brass. Also the top sensor had a gray end where the connector went on and the bottom one had a brown end where the connector went on.I would start with getting the correct top sensor connector in there. Also checking to see that you have the corrector sensor in the top hole as well. Once we get the temp gauge working then we can see if the fan come's on at the correct mark on the gauge. Also check that low coolant level sensor like I said. Let me know what you find.

You have the temp gauge working now the fan doesn't come on in that car until at least 3/4 on the gauge some time's the tip of the red if the gauge is worn. Now let's deal with the low coolant light next. First thing I want you to do is check and make sure the back up light fuse is good in the under hood fuse box. That's the fuse for that circuit. If it is good then I want you to unplug the coolant level sensor on the bottom of the coolant bottle then jump the connector on the harness across the two terminal's and leave the jumper in. Then start the car and see if the light goes out if it does then you have a bad coolant level sensor. Let me know what you find.