temp?

ok i have had this 95 gt for like a year now(now i know it has a chip what kind i dont know was in there when i got it) and the temp gauge has always read just before the "n" on normal(and fan would come on and off all the time i am guessing due to chip) one day i was driving and i noticed it was half way ,i am not over heating it never went any higher then then that but i was worried i changed the waterpump,flushed the system and put in a 180 stat it stayed in the same spot i tried a 160 stat (because i thught thats what they use when they install a chip am i wrong)same thing. and also once the car warms up the fan does not shut off stays on(probably due to the chip settings) ,i know thats not a bad thing but i am trying to get to the rout cause its kinda pissin me off..lol any ideas why all of a sudden this would change? any i deas an di thank you in advance.

well i just added some water wetter to it tonight wiht no real change..i know someone has to have something to sya about this..right

yes it is weird though how just i look down and i know i would have noticed it before that day going up it was just like BAM "hi i am hot" well i just read something about the rubber flap underneath the car missing....thread (overheating problems ) ....could cause this because i actually noticed that it was half off the car i removed and put back on later in the week ..im not sure if it was the right way or not anyone know

ok even if the gauge is wrong (but i dont think it is) and why i say that is because before this my fan would just come on anf off when needed now it stays on all the time when the car is running of course once the car warms up not just when i turn the key or start it?..any ideas on that one ..oh yea and hwat about the black thing under the car that i wrote about on here to?