'90 240 IAT specs????

[pmkls2]

Okay, so I was shopping around on ebay and found those people selling these resistors to put in place of your IAT for about $25 + S&H. They advertise up to a 20 hp. increase and it is just as good as having your ecm recalibrated. Now, I know well enough to see past all the B.S., but they do have a good idea. Being an electronics tech I figured I could do the same thing for less than a buck and a trip to radio shack. I just need to know the resistance values for the IAT sensors. If anybody could answer that question for me I would be ever grateful. And after I do this mod I will put up a post letting everybody know how well it worked. I surely dont expect 20 hp. but hey any extra pep is always welcome.

[NeedCAforS13]

I tried those ebay things when they were like $.99... all it did was make my car run pig rich (blackened my bumper) and not idle very well. Almost no increase in performance except maybe at WOT. I ran it like that for all of 20 minutes before deciding it wasn't worth soaking my pistons with gas and killing my rings. but hey, the choice is yours:) Let me grab an FSM at work tomorrow and I'll find those resistance values for you...

Sean

[pmkls2]

Well, the trick is not to fool the ecm into thinking it is like -5 degrees fahrenheit outside, but that it is just cooler than it actually is. I am just looking for a general range to work with here and I'll play with a few different resistance values. I mean you can buy resistors dirt cheap at radio shack and they are selling you the same thing for $99 that you can buy for probably 99 cents. I saw em on ebay for like $30 plus s&h, but you see where I'm going with this. If one is willing to take the time and play you could squeeze a little more pep out of it without making it overly rich. Hey who knows, maybe I'll stumble onto something here. I know us GM guys do similar things with our IAT sensors, usually we move them far away from the engine to get a cooler air reading so I know it is a way to get just a little more out of a car without spending much money at all. But if you could give me an idea of what range the sensors read in it would be great. And I am particularly interested in knowing if the resistance goes up or down when the temp is cooler. After I am all done playing I will tell ya my results wether they be good or bad. Thanks,

Phil