sorry i meant TWO TIMES IN ALMOST TWO WEEKS..

CEL came on.. scanned it, result: p0118 (ect sensor h.i).
Replaced ect sensor which was a B1^7<* (the thread was messed up during the replacement and JB weld had to be used since it was a tiny bit loose), took the car to work everything running good & spr happy because i got my car running. Well i got to work once i was about to park my car turns off.... WTF!. CEL ON again. ran the car for about a week, scanned it & guess what it was.... p0118 AGAIN. I erased the code.. ran it for about 3 days CEL turns on Again but now i had hesitation/stuttering while cruising on the freeway (replaced tps about a month ago.. napa auto part) luckilly this time my friend let me borrow his scanner so i pulled over scanned & it was p0118.. erased it (annoyed already) actually ran good after i erased it, got home still had a lil stuttering but got home.. today i started the car, it starts on the 1st try checked the codes & p0118 is there and NOW p0121.
WTF !!. any help would be greatly appreciated.
this is my DD btw u.u

 

I've run across crappy ECT sensor connectors that gave
intermittent whacked-ECT readings and all the goodness
that ensues. You might check out the contacts, maybe
see if they can be tightened. Sometimes just a repetitive
reseating can get you "good enough for now".

 

I agree with jimmyblue had a car doing same thing if wiggle the connector and it would stumble I ended up just putting a new connector on it.