Can someone explain P0113 to me??
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    Newbie homestar has not yet proved knowledgeable
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    Default Can someone explain P0113 to me??

    P0113 Intake air temperature (IAT) sensor high input Wiring open circuit/short to positive, ground wire defective,IAT sensor, ECM

    what does this mean? should i worry about it? i'm about to make a trip home and i want to know that this is not a big deal...intake air temperature is too high. makes sense, sometimes my elantra doesn't respond to throttle as well as it should...

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  3. #2
    Super Moderator hyunelan2 knows a lot about Elantras hyunelan2's Avatar
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    Default Re: Can someone explain P0113 to me??

    Did you put one of those "ebay mod chips" on your car? They alter the signal to the IAT sensor (and don't do anything good either). Depending on air temperature, the density of the air is different, and thus fuel is mixed "more or less quantity" to the air. If it's off, you're going to run rich or lean.


    2010 Equator Sport | 2002 Elantra GLS (sold) | 2003 Tiburon GT | 2004 Santa Fe GLS


  4. #3
    Newbie homestar has not yet proved knowledgeable
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    Default Re: Can someone explain P0113 to me??

    Nah, no modding done...just trying to get the car in good shape. I could be freaking out for nothing, seems like it's possible the sensor is malfunctioning, or it really is that damn hot here in Texas!! Thanks for the reply though

  5. #4

    Default Re: Can someone explain P0113 to me??

    Its not saying the temp is to high its saying there is a short. Its either the wiring from the IAT to the ECM or the IAT went bad. The part is 40 bux from hyundaipartsonline.com and unless your as dumb as a brick you can change it yourself. If you dont know where/what it is Ill send you a pic to show you. One clip and two bolts and its out. 10min job if that.

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    Default Re: Can someone explain P0113 to me??

    thanks a lot!

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    Bleh RedScorp has not yet proved knowledgeable
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    Default Re: Can someone explain P0113 to me??

    Quote Originally Posted by WytchDctr View Post
    Its not saying the temp is to high its saying there is a short. Its either the wiring from the IAT to the ECM or the IAT went bad. The part is 40 bux from hyundaipartsonline.com and unless your as dumb as a brick you can change it yourself. If you dont know where/what it is Ill send you a pic to show you. One clip and two bolts and its out. 10min job if that.

    P/n
    3930022600
    Just an update. I wasn't able to find the sensor available through hyundaipartsonline.com. Seems it's not carried anymore. I called my local dealership today and the cost from them is $74.01.

    Anyone work for a dealership that I could perhaps purchase it from you at cost + shipping or something? 74 bucks for a little sensor seems outrageous. If not, no big deal.

    Thanks!

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    the king of bondo G4GC has not yet proved knowledgeable G4GC's Avatar
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    Default Re: Can someone explain P0113 to me??

    Before you spend the bucks grab a DMM (digital multimeter) and make sure your ground isn't shorted to positive, check your reference feed (positive) and make sure you have voltage... I think it's like 5 volts but i may be wrong. if those are bad you could look up the specs. for the IAT. or ask a dealer they may tell you.

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    Make Every Day A Hyundai! elantra_mn has not yet proved knowledgeable elantra_mn's Avatar
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    Default Re: Can someone explain P0113 to me??

    So, If I'm not mistaken this would be the cluster of sensors and the one on the left would be the "problem sensor". A.K.A. the single sensor in the second pic.
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    Make Every Day A Hyundai! elantra_mn has not yet proved knowledgeable elantra_mn's Avatar
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    Default Re: Can someone explain P0113 to me??

    This link just solved all of my problems.

    http://www.xaviercartay.com/car/iat.htm

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    Newbie Nathan007 has not yet proved knowledgeable
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    Default Re: Can someone explain P0113 to me??

    That's awesome, I hope it will solve mine too...

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    Newbie vn1500g3 has not yet proved knowledgeable
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    Red face Re: Can someone explain P0113 to me??

    Here is the Breakdown for the P0113 / P0112 IAT Issue. The IAT is built into the MAP ($54.99 at Autozone PN: SU6249) sensor. The 2002 Beta engine in Elantra was last year for a Speed Density EFI system. This system relies on MAP, TPS, CAM Position, and Coolant temp (and a few others) to make its Injection Calculations. In 2003, Hyundai went to a MASS Flow system which eliminates the MAP sensor. On '03 and later models, the IAT is built into the MASS AIR Sensor and must be replaced as a unit (~$300 to replace).

    DTC P0112 OR DTC P0113
    Code Definition
    DTC P0112: Intake Air Temperature Sensor Circuit Low Input
    DTC P0113: Intake Air Temperature Sensor Circuit High Input

    Circuit Description
    The IAT sensor is built into MAP sensor. The MAP/IAT sensor is a variable resistor that changes resistance as intake air temperature changes. ECM uses MAP/IAT sensor signal to control fuel injector pulse width. When cold air is detected ECM will increase injector pulse width. When warm air is detected ECM will decrease injector pulse width.

    Failure Conditions
    ECM determines fault exists, sets DTC P0112 and turns the MIL when for 0.2 seconds during 2 drive cycles an air intake temperature of -49F (45C) is indicated by the MAP/IAT sensor. This check is made after at least 4 minutes and 10 seconds have passed since engine started and then idles for 30 seconds (with no fuel cut-off during a coast down). This code indicates a lower temperature is being read by the MAP/IAT sensor or ECM after the engine has been warmed up.

    ECM determines fault exists, sets DTC P0113 and turns the MIL when for 0.2 seconds during 2 drive cycles an air intake temperature of 257F (125C) is indicated by the MAP/IAT sensor. This check is made after at least 4 minutes and 10 seconds have passed since engine started and then idles for 30 seconds (with no fuel cut-off during a coast down). This code indicates a higher temperature is being read by the MAP/IAT sensor or ECM after the engine has been warmed up.

    Probable Cause
    Short to ground between ECM and IAT sensor.
    Open or short to voltage between ECM and IAT sensor.
    Short to each other in IAT circuits.
    Faulty IAT sensor.

    Test Procedure
    NOTE:
    It is recommended that vehicle cool down overnight before starting
    IAT sensor test procedure.

    1. Turn ignition on. Using scan tool, verify DTC P0112 or DTC P0113 is set.

    2. Ensure engine is cooled to ambient air temperature. Measure ambient air temperature. Turn ignition on. Using scan tool, read MAP/IAT sensor temperature. If MAP/IAT sensor temperature and ambient air temperature are not about the same, go to next step. If MAP/IAT sensor temperature and ambient air temperature are about the same, no problem is indicated at this time. Problem is intermittent or was repaired and DTCs were not cleared. Clear DTCs and ensure MAP/IAT sensor is operating properly.

    3. Turn ignition off. Disconnect MAP/IAT 4-pin connector. Turn ignition on. Measure voltage between ground and MAP/IAT connector terminal No. 2 (Red wire). Voltage should be 4.5-5.0 volts. If zero volts exist, go to next step. If 4.5-5.0 volts exist, go to step 5.

    4. Turn ignition off. Disconnect ECM 81-pin harness connector. See
    Fig. 6. Measure resistance between ECM 81-pin harness connector terminal No. 44 and MAP/IAT sensor harness connector terminal No. 2 (Green wire). If resistance is one ohm or less, go to next step. If resistance is more than one ohm, repair open in wire between MAP/IAT sensor and ECM 81-pin harness connector terminal No. 44. When repairs are completed, clear DTCs and verify MAP/IAT operation.

    5. Turn ignition off. Disconnect MAP/IAT connector and ECM 81-pin harness connector. Measure resistance between ECM 81-pin harness connector terminal No. 56 and MAP/IAT sensor harness connector terminal No. 3 (Gray wire). If resistance is more than one ohm, repair open between MAP/IAT harness connector terminal No. 3 (Gray wire) and ECM 81-pin harness connector terminal No. 56. If resistance is one ohm or less, ensure ECM connector terminals are clean and tight. If connector terminals are okay, replace MAP/IAT sensor with a known-good component. Clear DTCs and verify MAP/IAT sensor operation. If problem still exists, replace ECM. When repairs are completed, clear DTCs and verify MAP/IAT operation.

  13. #12
    Newbie garynangie has not yet proved knowledgeable
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    Default Re: Can someone explain P0113 to me??

    Ok so I ordered a new IAT from Autozone, 10.99, and it looks nothing like the one in the 2nd picture. Now that I've reread the above post a few times and I've actually absorbed the information (Thank you so much for posting) I see that I'd have to order the $54 MAP... DAMN thought I was off the hook for ten bucks hahaha.

    This is what they (store dude) called the IAT: (Air Charge Temp Sensor?)

    http://www.autozone.com/autozone/par.../N-jhih6Z9gsls

    And this is yet another on the site, listed as the IAT on the website:

    http://www.autozone.com/autozone/acc...mString=search

    This is why sometimes I love just calling the shop and saying "FIX IT PLEASE" lol
    Last edited by garynangie; 05-21-2012 at 08:08 PM.

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