eh... never mind, as a temp solution it will just dangle - till i fix it

shouldn't be a big deal

lol own problem researched and solved

 

Other than reduced mileage, I don't see any other issues arising. You MAY get a "engine" light.

 

should be okay but get a new filter asap. also, gj on winning the cf trunk

 

Man I had my IAT sensor hanging out of my intake for a month (stupid rubber grommet degraded) and I didn't know. I didn't notice a damn thing the entire time. I did get some incredibly bad gas mileage, but I'm pretty sure that had more to do with me being stupid and buying Meijers gas. DON'T BUY MEIJERS GAS.

I'm surprised you didn't replace the IAT sensor with a MAP or MAF sensor.

 

is there a piggyback that anybody's incorporated to trick the ECU into getting *modified* readings from the AIT?

I dont know the theory behind AITs. I've never owned a car that had one.

 

The intake air temp sensor causes the computer to change timing as the temp of the intake charge rises. It really isn't a big deal on N/A cars, but Nate you said you have a CT26. In that case it can be much more important.

Steve

 

Say I were to add length to the wiring, so that I could mount the AIT sensor near the front of the bumper (engine thinks it's getting COLD air, so it gives more spark advance)

I would run 93 octane as oposed to 87, and the ECU would keep timing more advanced, but still safely pull it if I start to knock.

That would be fun to experiment with. :whatwhat:

 

yeah... i talked to my engine guy - he said it probably isn't a big deal...


here is why i think so... how much temp. difference in air could there be from inside the air filter, and about 12 inches to the right of the air filter... the air going into the filter is coming from the drive side of the engine bay anyways, so readings shouldn't change that much, plus i would imagine the engine corrections done by the IAT are minimal

 

... I didn't notice a damn thing the entire time. I did get some incredibly bad gas mileage, but I'm pretty sure that had more to do with me being stupid and buying Meijers gas. DON'T BUY MEIJERS GAS.

Heh, I run meijer gas pretty consistently and haven't noticed any change in mileage or anything. Not to jack the thread, but briefly, what issues did you have with meijer gas?

 

yeah... i talked to my engine guy - he said it probably isn't a big deal...


here is why i think so... how much temp. difference in air could there be from inside the air filter, and about 12 inches to the right of the air filter... the air going into the filter is coming from the drive side of the engine bay anyways, so readings shouldn't change that much, plus i would imagine the engine corrections done by the IAT are minimal

I'd say you're mostly right... the issue is when you're at idle. At one point I had my outside thermometer rewired to be inside the engine bay and in the air filter box both. I noticed that while driving there's a bout a 3-6 degree F higher temperature inside the airbox, same outside. While idling (such as while sitting at a stoplight) the temperature can easily jump 10-15 F.

And if your car has been run then you park forawhile, coming back even only 15 minutes later you'll find it's jumped somewhere around 30-40 F. However inside the airbox cools off within minutes of starting the car, inside the bay it stays pretty toasty for a looong time.

It should be noted that temps go down while driving, eventually. So the issue is that iniside the airbox you've got temps from more outside air than inside air all the time. While driving you're okay, while idling and for a while after launch it's mostly hot engine bay air you're getting.

And I'll note that this method isn't very scientific -- that thermometer isn't the best in the world, but it at least gives a little idea.

 

IAT sensors regulate a constant temp anyways. Should be right around 68º

 

thanks for the information guys... i am most likely going to be adding an extension off of the turbo - like a sri, or maybe even down into the wheel well depending on what kind of room i have to route some plumbing - this way i can move the filter farther away from the hot hot manifold -

then with the piping i can just drill a hole in the tube to add the sensor... car has been fine thus far though with the sensor resting by the filter :thumbup:

 

Heh, I run meijer gas pretty consistently and haven't noticed any change in mileage or anything. Not to jack the thread, but briefly, what issues did you have with meijer gas?

Umm let's see... regular gas mileage - 23mpg combined

After Meijers gas - 14.9mpg

 

haha ever see the "POWER CHIPS" for toyotas on ebay? they do the same thing you were thinking, fooling the ecu into thinking the intake air is colder. its just a 2 cent resistor they sell for $20 plus $15 shipping

 

but do they stuffed up the engine??? coz i heard that 1 guy installed the chip then something blows up.... costs him $400 to fix it :lol: (maybe he just plain stupid or put the chip in some fuse instead of the IAT :clap: )

 

Umm let's see... regular gas mileage - 23mpg combined

After Meijers gas - 14.9mpg

Wacky! I'm pretty consistently around 30 mpg. I wonder if it's a regional thing.

 

Solara IAT

2007 Solara 2.4 4 cyl starts fine cold and after short or long stops. When a stop is 15 to 60 minutes get difficult start, not gas from injector, tries to fire then stalls. I think the its the IAT and believe its mounted next to filter with an intake and outflow hose but can't find any part listed online. Anybody have an answer. Took the part off just to make sure exactly what it looked like. Already replaced the mass airflow sensor mounted near it.