Can I unplug my MAP sensor and drive my elantra?
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Thread: Can I unplug my MAP sensor and drive my elantra?

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    Junior Member whicky1978 has not yet proved knowledgeable whicky1978's Avatar
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    Default Can I unplug my MAP sensor and drive my elantra?

    I am waiting on a new MAP sensor, and in the mean time I would like to know if my car would run better without the bad sensor? How good will my fuel economy be?

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    Junior Member markstibbyspot has not yet proved knowledgeable
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    well my sensor went bad and my car would sometimes bog...i can only imagine running no sensor. see if it will even start.

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    Ultimate Post Whore BColeman knows a lot about Elantras
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    Sorry, your car won't even run without it plugged in. The ECU relies on it for start up and running.

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    Junior Member whicky1978 has not yet proved knowledgeable whicky1978's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    Quote Originally Posted by markstibbyspot View Post
    well my sensor went bad and my car would sometimes bog...i can only imagine running no sensor. see if it will even start.
    It will start. I may drive it through town later and see if I have problems. It may be shot as it is, and I will continue to experience the same issues. I don't want to try it on my way to work and get stranded on the way.

    It may help for people to know that the MAP sensor is also the IAT sensor.

    Well, I drove to AutoZone and back, it drove just as good as before. I notice the stalling/choking/jerking the most when I am on the intersate going uphill, and I let off the gas to keep from speeding. In the long run, driving without the map might overheat the spark plugs.
    Last edited by whicky1978; 03-21-2009 at 06:55 PM. Reason: Automerged Doublepost

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    Ultimate Post Whore BColeman knows a lot about Elantras
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    The MAP is NOT the IAT. That is just one of it's many functions. In addition to reading and utilizing the temperature, it also uses Manifold Absolute Pressure, hence the name of the sensor. That pressure is used in determining air flow and fuel values for the ECU to flow the right amount of fuel to combust.

    And running without the sensor is an EXTREMELY bad idea. At least with it hooked up, the ECU can still somewhat function around the areas that are bad.

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    Ultimate Post Whore cbogg knows a lot about Elantras cbogg's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    yeah, a motor not seeing load, not good. wait till the sensor comes, and stop driving it, before you start posting in tommy's blown motor thread.
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    Junior Member whicky1978 has not yet proved knowledgeable whicky1978's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    OK, I will plug it back up.

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    Ultimate Post Whore cbogg knows a lot about Elantras cbogg's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    that's a good little whicky, way to listen to reason!
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    Junior Member whicky1978 has not yet proved knowledgeable whicky1978's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    I wonder the durlast version will differ from the factory sensor. I like it when my car feels like it's riding on air. real smooth. I don't have that with or without the sensor plugged in. But maybe my tires are out of alignment.

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    Ultimate Post Whore cbogg knows a lot about Elantras cbogg's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    oem bro, it's the only way to go.
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    Ultimate Post Whore BColeman knows a lot about Elantras
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    Agreed! An OEM part is the best way to go when it comes to sensors. Unless it's an emergency kind of thing where you don't have access to the new part from the dealer and you need to get the car back on the road. But I would personally only do that for a short time till I could get the OEM part.

  14. #12
    Super Moderator Cypher knows a lot about Elantras Cypher's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    I drove around for a day with my map sensor unplugged, it was by accident. I was checking the resistance one day for another member then had to run inside to do something. I forgot to plug it back in and drove around the next day with it unplugged. I could tell there was a loss of power but nothing ill came of it.
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    The Euro Guy Fox has picked up a wrench Fox's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    Usually, you'll lose power if you go past 30-40% throttle. The car won't add much more gas, and you'll run lean as ****.

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    Avante2nr Elantra87 has picked up a wrench Elantra87's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    no!! it will not run lol

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    Super Moderator Cypher knows a lot about Elantras Cypher's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    Quote Originally Posted by Fox View Post
    Usually, you'll lose power if you go past 30-40% throttle. The car won't add much more gas, and you'll run lean as ****.
    Actually, didn't run that lean. Remember that I have a wideband hooked up at all times...

    Quote Originally Posted by Elantra87 View Post
    no!! it will not run lol
    You are wrong. It did run. I drove it 60 miles like that to and from work.
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    The Euro Guy Fox has picked up a wrench Fox's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    Quote Originally Posted by Cypher View Post
    Actually, didn't run that lean. Remember that I have a wideband hooked up at all times...
    Even at WOT?

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    Super Moderator Cypher knows a lot about Elantras Cypher's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    I don't go WOT often, so I couldn't tell you.
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  20. #18
    turbo envy only1db has picked up a wrench only1db's Avatar
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    Default Re: Can I unplug my MAP sensor and drive my elantra?

    the factory ecu will throw a code for not having it and then it will rely on a predetermined map when it goes into closed loop....


    you can run like that for awhile....your mileage may suffer a little...but it goes to a back up map in the ecu....no harm no foul....and obviously there will be a lack of power.


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  21. #19

    Default Re: Can I unplug my MAP sensor and drive my elantra?

    so im gonna revive this.

    just got a code for intake air temp high input. p0113 i think. so the MAP it self isnt bad, just the temp portion of it? anything i can do to fix/clean it? or do i just need a new map sensor?

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