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Where is the IAT sensor on a 5.4 Triton motor

I replace the sensor but I keep getting a bad code saying sensor is no good

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Hi,can i know where is the boost sensor stay in toyota triton.

Posted on Jan 21, 2014

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6ya6ya
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Posted on Jan 02, 2017

emissionwiz
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SOURCE: IAT sensor

The IAT (Intake Air Temperture) is the sensor that measures the temp of the incoming air to the engine, it is either in the rubber hose to the engine from the air filter housing, or on the air filter housing itself, it is small and round with 2 wires going to it, many times it is left unplugged during routine maintenance.

Posted on Oct 09, 2008

emissionwiz
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SOURCE: DTC Code of a 1404 , and also a IAT High input malfunction

sounds like the IAT is disconnected, it is either in the flex hose from the air cleaner to the engine or in the air filter housing, on my GM product car it is in the air intake hose, it is small and has a 2 wire connector to it, just pushes and pulls in and out of the flexible air intake hose.

Posted on Mar 13, 2009

  • 15 Answers

SOURCE: IAT and MAF info

I have the same "chip" (really just a resistor). It should be the wire harness that clips into the lower box of the intake. I believe it is a green and a black wire. Just unclip it and slide the end of the resistor into each wire prong. Then tape the heck out of it. I put a rubber cap over mine then electrical tape. Works like a charm

Posted on Jun 25, 2009

  • 5 Answers

SOURCE: OBDC code says bad camshaft pos sensor, circuit

has 2 sensors if dohc

Posted on Sep 18, 2009

fingaz22
  • 1068 Answers

SOURCE: TOO LEAN CODES

yes very very common code for these motors i get them all the time. now the first thing i do is listen to the pcv valve for noise if it is rattling this is the problem and is the most common of all. another thing is the intakes leak from cracks in them but the only way to find it is with a smoke machine. now the one other thing i have seen before is debre like a leaf in the mass air flow sensor but you have replaced it so most likely no that.

do your self a favor and change the pcv valve it only cost under 5 dollars. if this is not it you will need to find the leak in and around the intake or a vacuum hose.

because you have two lean banks this mean if it is a leak then it has to be in common with both banks and that is the vacuum line system intake etc...

let mew know if you have any more question. good luck man

Posted on Oct 21, 2009

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2005 ford taurus with a p0113 code saying high circuit


p0113 means you are getting a very high voltage reading from the IAT sensor to the ECU. Usually this is because the IAT has become faulty or bad. Replace and clear codes it should go away.

Aug 16, 2016 | 2005 Ford Taurus SE

1 Answer

What does po112 code mean?


it means exactly what the book says (FSM)
http://www.obd-codes.com/p0112

it means the Intake air temp sensors is reading OUT OF RANGE
and ILLEGAL input.
The 5vdc supply refr. is dead (0v) bad ECU, or wires.
the IAT sender is shorted.
the IAT wires are shorted.
we find this easy.
we measure the IAT with an Ohm meter, if it reads good
we then check for 5v at the connector, if bad we find that next.
if 5v good we check the wires, for ground outs.

Dec 05, 2013 | 2006 Toyota Corolla

1 Answer

P0113 fault code at smog check


IAT (intake air temperature) sensor out of range.
It means that the ECU is reading low resistance. It could mean that you have a bad IAT Sensor, a bad ECU (Probably not), or an open (short) in the positive or ground.

Get a voltmeter. Unplug the IAT from the connector and hook the voltmeter to the positive and negative of the IAT sensor. Turn the key to the ON position (DO NOT turn the engine on). And measure voltage. It should be close to 5volts.

If you get close to 5 volts - Sensor is bad.
If you get 0 volts - Short in positive or ground wire.
If you get over 5 volts - Bad resistor in ECU

May 30, 2012 | 1997 Honda Civic

1 Answer

Hello people i got a gmc 99 jimmy 2door sls the engine light keeps coming on then going out ive coded it to be an iat sensor and also says the iat sensor intermitten voltage high and then the knock sensor...


the IAT may be bad or the connector is bad, real common (friend should know to check that) get a real scanner and see what the IAT is reading, then move the connector and see if it changes. if it reads -40f then its bad or disconnected.

Sep 08, 2011 | 1999 GMC Jimmy

2 Answers

MOtor is racing code comes upPO113


P0113 - Intake Air Temperature Circuit High Input
The powertrain control module (PCM) monitors the temperature of the air entering the engine. The PCM supplies a 5 volt reference voltage to the Intake Air Temperature (IAT) sensor. The IAT is a thermistor that varies resistance based on temperature. As the temperature increases, resistance decreases. Low temperature results in a high signal voltage. When the PCM sees a signal voltage higher than 5 volts, it sets this P0113 check engine light code.

Potential Symptoms: There will likely be no symptoms other than illumination of the Malfunction Indicator Lamp (MIL - Check Engine Light / Service Engine Soon).

Causes: A code P0113 may mean that one or more of the following has happened:
Internally failed IAT sensor
Faulty connection at IAT sensor
Open in IAT ground circuit or signal circuit
Short to voltage in IAT signal circuit or reference circuit
IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
Faulty PCM (less likely but not impossible)

Possible Solutions:
First, if you have access to a scan tool, is there an IAT reading? If the IAT reading is logical then the problem is likely intermittent. If the reading is less than -30 degrees, unplug the connector. Install a jumper wire between the harness connector signal and ground circuits. The IAT temperature reading on the scan tool should be maxed out at the high end. For example it should be 280 degrees Farenheit or higher. If it is, the wiring is okay, and it may have been the connection. If it isn't install the jumper wire between the IAT signal circuit and the chassis ground.

If now the IAT reading on the scan tool is maxed out then check for an open in the IAT ground circuit. If you get no reading at all on the scan tool, it's likely that the sensor signal is open or the 5 volt reference is missing. Check using a DVOM (digital volt ohm meter) for a 5 volt reference. If it's there, then unplug the connector at the PCM and check for continuity on the IAT signal circuit between the PCM connector and the IAT connector.

Hope this helps (remember to rate this answer).

May 06, 2011 | Saturn LW Cars & Trucks

1 Answer

Hello my check engine light is on i went to local parts house had them read the code low input voltage in the iat sensor so i bought a new one had the code cleared and before i left parking lot light was...


Keep in mind that the IAT (intake air temperature) sensor simply measures the temperature of air that is entering the engine. Intake air temperature is important because the higher the intake air, the higher the combustion temperatures. High combustion temperatures result in increased Nox (Nitrogen oxides) emissions. To keep these higher temps from causing increased combustion temps, the intake air tubing should be intact, allowing the engine to "breathe" air that isn't sampled from the engine compartment. The IAT measures air temp by using a thermistor, or a thermometer of sorts. The thermistor is supplied 5 volts reference voltage from the PCM (powertrain control module) and a ground. Usually, when the air temperature is cold the resistance in the thermistor is high and when the air temperature is warmer, the resistance decreases. This change in resistance changes the 5 V reference from the PCM, thereby informing the PCM of the temperature of incoming air. If the PCM notices that the incoming air temp is unusually high, say, 300 degrees, when the engine temp is still relatively low, it will set a P0112.

Symptoms: There may be no noticeable symptoms of a P0112 code other than an MIL (Malfunction Indicator Lamp). However, a emissions test may reveal higher Nox readings depending on the type of IAT failure. Or the engine may ping under load, depending on the type of IAT failure.

Causes: Usually the P0112 is caused by a bad IAT (internally shorted or open or otherwise damaged), but it could also be:
* No reference voltage to the IAT sensor due to an open wire
* Excessively high intake air temperatures
* Short to ground on signal circuit
* Damaged IAT connector
* Bad PCM

Possible Solutions:
Hook up your scan tool or code reader and read the IAT reading. With a cold engine, the IAT should roughly match the coolant reading, since both will read ambient temperature. If the IAT is reading excessively high, check the IAT connector for damage. If you find none, unplug the IAT sensor and recheck the reading. It should now read the minimum, around -20 deg. If it does, then replace the IAT sensor. But, if the reading is still high, unplug the sensor and check for resistance across the two wiring harness terminals. If there is infinite resistance, then the PCM itself is bad. If the resistance isn't infinite, then check and repair the short to ground on the signal circuit.

Keep us updated.

Feb 16, 2011 | Chevrolet C3500 Cars & Trucks

1 Answer

I have a 97 Chevy Cavalier. I just had the EGR valve replaced and now I'm getting a code saying that the IAT sensor is reading a high input. Would having the valve replaced affect the sensor?


I'ts possible that the IAT sensor is unhooked or came unhooked. This is usually what I find when encountering this code. This sensor is usually at or near the air filter/air inlet tube or on the intake manifold and has a two wire connector going to it. Of course you could have a bad sensor or other problems but I'd start by checking to be sure it's plugged in first. Hope this helps and good luck!

Dec 20, 2010 | 1997 Chevrolet Cavalier

1 Answer

Where is the IAT sensor on a 03 Ford Taurus,3.0L. flex fuel?


You don't change parts when you get a code. The codes are a starting point for diagnostic testing.
Codes are the symptoms of a possible problem,such as an out of range or defective sensor. Codes don't mean you change something. It's not that simple or are vehicles designed as such. You always test,then replace. You can't do either, if you don't know the system your working on.
The MAF and IAT Sensors are both in the MAF,one piece in most cases.

What are your issues ? Not likely a MAF gone bad.
Do you have the air filter cover on tight and no duct work leaks or vacuum leaks? That's what's possibly setting the code for the MAF.

Jul 30, 2010 | 2003 Ford Taurus

2 Answers

Check engine code 0113


You failed to give the model year which could have an influence on the accuracy of this answer:

" IAT Sensor 1 Circuit High Input"

Stolen from another forum:

"Intake Air Temperature (IAT) Sensor

The intake air temperature sensor (IAT sensor) changes resistance in response to intake air temperature. The IAT sensor resistance decreases as the surrounding air temperature increases. This provides a signal to the PCM indicating temperature of the incoming intake air."



Aug 27, 2008 | Hyundai Elantra Cars & Trucks

1 Answer

My 1997 gmc sonoma


This the problem with IAT bad inlet air temp (IAT) sensor.Get it replaced....................

Jun 03, 2008 | 1997 GMC Sonoma

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