an update and more questions. i have searched a little and found very few usefull threads. so i bought a JDM 7mgte, installed it, had a few problems, but now it runs. and runs pretty decent. the problems i am having is it is throwing a few codes, hard starts, and it idles high. the codes are 22, 24, 41? (the coolant temp sensor one) and the throttle postion senser one. i checked what i thought to be the coolant temp sensor(i cant seem to find any info on the sensors on the thermo housing) the top one on the side of it. that checked out good. i tried adjusting the TPS, which i think i did right, the method on the TSRM confused me a lil, but i think i got it right, but that code is still being thrown, and when i go WOT with the key on , engine off, the 3rd TEMS light does NOT come on. also my throttle stop skrew was backed out way to much to were it was not touching the throttle plate. i turned that in to were it barely stops it, i couldnt find anything on how to adjust that. but my theary is that the ECU not recieving a coolant temp signal is causing my car to idle very low when cold(around 600) and be hard to start, and idle high when warmed up(around 1500). when i plug up the air tube that goes to the ISC it idles at around 700, idk if thats an acurate way to see if the ISC is whats raising my idle or not. also my car wants to die when i touch the throttle when it is really cold. but once it warms up it runs perfect other then the idle. o and the throttle response seems a lil laggy also even when warmed up. and my AFM is good. and suggestions?