intake air temp sensor

ontario4runner · 10-03-2008, 02:51 PM

hey guys.
quick question, 91 4runner, 3VZE have searched but cant seem to find anything, as well in the manual i downloaded from the sticky

where on earth is the air intake temperature sensor? and how do i test it.. code 24 i believe.. as well whichever code for coolant temp sensor but i got that one covered.. please help! my search for my terrible idle is seemingly coming to an end! haha

me---> toyota

This ad is not displayed to registered members.
Register your free account today and become a member on Yotatech!

ontario4runner · 10-03-2008, 03:09 PM

anyone at all?

space-junk · 10-03-2008, 03:10 PM

im not sure that there is an "air intake temp sensor"

ontario4runner · 10-03-2008, 03:14 PM

really? because jumped te1 and e1 terminals and came up with code 23/ 24 which is intake air temperature sensor/ intake air temperature circuit

project91 · 10-03-2008, 03:23 PM

Intake air temp sensor is the little white probe sticking down into the AFM.It will be on the intake tube side,(have to pull the AFM off) measures the temp of the air that is coming through the AFM....can be cleaned with electrical contact cleaner...if the problem persists, more than likely the AFM is bad. The wires that connect to it go through the main plug that is connected to the top of your AFM.

ontario4runner · 10-03-2008, 03:27 PM

AFM? air flow meter? maybe haha

space-junk · 10-03-2008, 04:40 PM

Quote:

Originally Posted by ontario4runner

really? because jumped te1 and e1 terminals and came up with code 23/ 24 which is intake air temperature sensor/ intake air temperature circuit

I stand corrected... just chalk it up to being a noob!!

Jay351 · 10-03-2008, 04:55 PM

Use an ohm meter and test out your AFM. It takes all of 10 mins to do, if the air temp sensor is wired into it, you will be able to find out the problem.

jason191918 · 10-03-2008, 05:09 PM

Quote:

Originally Posted by Jay351

Use an ohm meter and test out your AFM. It takes all of 10 mins to do, if the air temp sensor is wired into it, you will be able to find out the problem.

http://www.ncttora.com/fsm/1993/engine/92volumeai.pdf

I never heard of a temp sensor, so it must be part of the AFM. Here is how to test it.

myyota · 10-03-2008, 05:23 PM

The temp sensor is inside the AFM, if you remove the plastic cover you can get to it and were it plugs in.

ontario4runner · 10-03-2008, 05:58 PM

Quote:

Originally Posted by space-junk

I stand corrected... just chalk it up to being a noob!!

haha its all good! at least you took the time to have a look see, as i said i cant find much on it myself so if it wasent for the code reading i wouldnt have realized it myself!

to everyone else thanks mucho any more info would help greatly

is afm air flow meter?

Jay351 · 10-03-2008, 06:08 PM

Yes, Volume Air Flow Meter.

ontario4runner · 10-03-2008, 06:12 PM

awesome, thanks jay.. so the intake air temperature should be located inside of that? or should i be able to see the sensor with the AFM still on?.. i guess tomorow morning i will find out if i get lost ill post some pics

bigt · 10-03-2008, 06:25 PM

not hard and with pics there aint nothing yotatech cant answer.. theres always some bored yota nut on here!

FireRox21 · 01-27-2011, 03:53 PM

I too am getting a code 24 for the IAT sensor. I just replaced the AFM, but I am still getting a check engine light/code. However, I pull up the replacement IAT sensor at Auto Zone and get a little message that says the sensor cannot be used on pollution controlled vehicles. What does that mean? I just passed smog here in California and won't be due for another 2 years. How am I supposed to change this sensor and get rid of the light/code, if I'm not supposed to use it on pollution controlled vehicles? Anyone have an idea, or is this some stupid California thing. BTW, I have a 1990 4Runner SR5 V6 with a new engine, new everything, new sensors (except the IAT), etc. Any help would be great!!!

4Crawler · 01-27-2011, 04:02 PM

You can test the sensor:
- http://www.4crawler.com/4x4/CheapTri...tml#AFMtesting

Then see if that AFM signal is getting back to the ECU by testing the ECU connector pins for that same signal:
- http://www.4crawler.com/4x4/CheapTri...roubleshooting

10-03-2008, 03:09 PM	#2 (permalink)
ontario4runner Registered User Personal Sales Rating: (0) [OP] Join Date: Sep 2008 Location: belleville Ontario Posts: 66	anyone at all? __________________ 1991 Toyota 4Runner SR5, Daily Driven Toy 3VZE, IFS, AUTO 31X10.50-15's Negative 25 MPG 289,000km Idles at 1700rpm, thats 1 Rev per heep devoured:)

10-03-2008, 03:10 PM	#3 (permalink)
space-junk Registered User Personal Sales Rating: (1) Join Date: Aug 2008 Location: Wilton, CA Posts: 4,483	im not sure that there is an "air intake temp sensor" __________________ 1995.5 Tacoma SX Build Thread - a few mods 1987 Turbo 4Runner Build Thread LCECrackaway Racing EnginesHi Lift175K Rebuild in progress... 1990 4Runner SR5 - Sold :( Aisin Hub Rebuild Writeup* Trailer Rebuild

10-03-2008, 03:14 PM	#4 (permalink)
ontario4runner Registered User Personal Sales Rating: (0) [OP] Join Date: Sep 2008 Location: belleville Ontario Posts: 66	really? because jumped te1 and e1 terminals and came up with code 23/ 24 which is intake air temperature sensor/ intake air temperature circuit __________________ 1991 Toyota 4Runner SR5, Daily Driven Toy 3VZE, IFS, AUTO 31X10.50-15's Negative 25 MPG 289,000km Idles at 1700rpm, thats 1 Rev per heep devoured:)

10-03-2008, 03:27 PM	#6 (permalink)
ontario4runner Registered User Personal Sales Rating: (0) [OP] Join Date: Sep 2008 Location: belleville Ontario Posts: 66	AFM? air flow meter? maybe haha __________________ 1991 Toyota 4Runner SR5, Daily Driven Toy 3VZE, IFS, AUTO 31X10.50-15's Negative 25 MPG 289,000km Idles at 1700rpm, thats 1 Rev per heep devoured:)

10-03-2008, 04:55 PM	#8 (permalink)
Jay351 Contributing Member Personal Sales Rating: (0) Join Date: Feb 2007 Location: maple ridge, British Columbia, Canada Posts: 9,058	Use an ohm meter and test out your AFM. It takes all of 10 mins to do, if the air temp sensor is wired into it, you will be able to find out the problem. __________________ 91 3.0 4x4 pickup - has a few mods 91 ls400 VIP on the cheap http://www.cardomain.com/ride/2572486

10-03-2008, 03:23 PM	#5 (permalink)
project91 Registered User Personal Sales Rating: (0) Join Date: Jul 2008 Location: GA Posts: 172	Intake air temp sensor is the little white probe sticking down into the AFM.It will be on the intake tube side,(have to pull the AFM off) measures the temp of the air that is coming through the AFM....can be cleaned with electrical contact cleaner...if the problem persists, more than likely the AFM is bad. The wires that connect to it go through the main plug that is connected to the top of your AFM.

10-03-2008, 05:23 PM	#10 (permalink)
myyota Registered User Personal Sales Rating: (0) Join Date: Oct 2006 Location: GrangeVille, Idaho Posts: 4,174	The temp sensor is inside the AFM, if you remove the plastic cover you can get to it and were it plugs in.

10-03-2008, 06:08 PM	#12 (permalink)
Jay351 Contributing Member Personal Sales Rating: (0) Join Date: Feb 2007 Location: maple ridge, British Columbia, Canada Posts: 9,058	Yes, Volume Air Flow Meter. __________________ 91 3.0 4x4 pickup - has a few mods 91 ls400 VIP on the cheap http://www.cardomain.com/ride/2572486

10-03-2008, 06:12 PM	#13 (permalink)
ontario4runner Registered User Personal Sales Rating: (0) [OP] Join Date: Sep 2008 Location: belleville Ontario Posts: 66	awesome, thanks jay.. so the intake air temperature should be located inside of that? or should i be able to see the sensor with the AFM still on?.. i guess tomorow morning i will find out if i get lost ill post some pics __________________ 1991 Toyota 4Runner SR5, Daily Driven Toy 3VZE, IFS, AUTO 31X10.50-15's Negative 25 MPG 289,000km Idles at 1700rpm, thats 1 Rev per heep devoured:)

10-03-2008, 06:25 PM	#14 (permalink)
bigt Registered User Personal Sales Rating: (0) Join Date: Nov 2007 Location: chippawa niagara falls ontario Posts: 3,269	not hard and with pics there aint nothing yotatech cant answer.. theres always some bored yota nut on here! __________________ 1991 hilux stinky tail pipe , bus turbo whine and the steering wheel on the RIGHT side trail rig/beater 1982 suzuki sj410, 1 litre 45 thorobreed ponies and as tough as a yota Where you go is your buisness, getting you home is ours

01-27-2011, 03:53 PM	#15 (permalink)
FireRox21 Registered User Personal Sales Rating: (0) Join Date: Jul 2010 Location: Ontario, California Posts: 3	Iat I too am getting a code 24 for the IAT sensor. I just replaced the AFM, but I am still getting a check engine light/code. However, I pull up the replacement IAT sensor at Auto Zone and get a little message that says the sensor cannot be used on pollution controlled vehicles. What does that mean? I just passed smog here in California and won't be due for another 2 years. How am I supposed to change this sensor and get rid of the light/code, if I'm not supposed to use it on pollution controlled vehicles? Anyone have an idea, or is this some stupid California thing. BTW, I have a 1990 4Runner SR5 V6 with a new engine, new everything, new sensors (except the IAT), etc. Any help would be great!!!

01-27-2011, 04:02 PM	#16 (permalink)
4Crawler Contributing Member Personal Sales Rating: (2) Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 10,671	You can test the sensor: - http://www.4crawler.com/4x4/CheapTri...tml#AFMtesting Then see if that AFM signal is getting back to the ECU by testing the ECU connector pins for that same signal: - http://www.4crawler.com/4x4/CheapTri...roubleshooting __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad - YotaTech discount code Gettin'Off 4WD Club

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
WTF is a intake air temp. sensor?? (3VZ-E)	Keener	86-95 Trucks & 4Runners	6	02-13-2008 05:40 AM
Air Intake Temp Sensor	Kiff	86-95 Trucks & 4Runners	9	11-29-2007 01:19 PM
Location of air intake temp sensor 1990 3vze??	LOCKnGO	86-95 Trucks & 4Runners	7	07-28-2006 07:56 PM
Air Intake Mod, Air Intake Temp Sensor Mod	BOSTON4RUNNER	95.5-2004 Tacomas & 96-2002 4Runners	14	11-17-2004 07:00 AM
Air intake temp sensor	AndyW	95.5-2004 Tacomas & 96-2002 4Runners	4	02-26-2004 12:56 PM

01-27-2011, 04:02 PM
Yotatech 4WD Truck Paid Advertisement