Mass Air Flow check engine code - Hyundai Forums : Hyundai Forum
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post #1 of 11 (permalink) Old 06-07-2017, 09:03 AM Thread Starter
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Mass Air Flow check engine code

First post on here and would appreciate any help I can get.

I'm getting a checking engine light and have been told that the code refers to an issue possibly with the mass air flow sensor. The car is a 2010 Sonata 2.4L engine and it has just over 102k miles on it so its not out of the realm of possibilities that the sensor needs some cleaning. Its never been cleaned to my knowledge unless the dealership did it at some point which I doubt. So two questions:

1) On the forum I've seen some posts that say a 2010 Sonata 2.4L has a MAF sensor and some that say it has a MAPS. Which is it?

2) If the car has a MAF sensor, where can I locate it?

Thanks in advance.
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post #2 of 11 (permalink) Old 06-07-2017, 09:33 AM
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first off, if you are getting a scan from a place like autozone, oreilly's, etc, NEVER have them interpolate the code. get the actual code, and look it up yourself.
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post #3 of 11 (permalink) Old 06-07-2017, 09:38 AM
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https://www.rockauto.com/en/catalog/...)+sensor,11207

Rock Auto lists both a MAF and a MAP for it ...


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post #4 of 11 (permalink) Old 06-07-2017, 09:47 AM Thread Starter
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Thanks guys. I got it scanned by a friend of the family who is a mechanic and has a shop. We looked up the code together so I know I'm not getting bad info. I think the code was P0106.

I'm fairly certain at this point that the car has a MAPS. I think I've figured out the location (definitely not as easy or accessible as a MAF).

Wondering if anyone has had any luck using a MAF sensor cleaner of a MAPS. Thanks.
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post #5 of 11 (permalink) Old 06-07-2017, 06:10 PM
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Have you had the battery disconnected or a flat battery recently by any chance?
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post #6 of 11 (permalink) Old 06-07-2017, 06:34 PM
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I looked up P0106
It says it is a MAPS fault.

MAF sensors can be found on the in take tube that comes from the air filter and goes to the engine's in take plenum

Last edited by avisitor; 06-07-2017 at 06:38 PM.
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post #7 of 11 (permalink) Old 06-09-2017, 11:00 PM
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Since your car is exactly like mine engine wise (I have an 09 Sonata with the 2.4) I can affirm that your car has a MAPS just like the code suggests is at fault. However, if your P0106 code only appeared after disconnecting the battery or having the battery die for one reason or another I would disregard it. The Check Engine light on my car lights up with that code if one of those two things happen. I did remove the sensor to inspect it and it's not hard to do. It is located after the throttle body and before the intake manifold. There is only one bolt holding it in that you can remove with a small ratchet before only pulling the sensor out after unplugging it. There was some oil or fuel of some sort on my sensor that I wiped off gently with some paper towels before putting it back in. The code comes back every time power is cut but there are no noticeable symptoms so I just delete it and it never comes back until I need to unplug the battery again.
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post #8 of 11 (permalink) Old 06-09-2017, 11:15 PM
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Map not likely the fault....

Rash of them with YF Sonata and engine changes, had a go around with 1 that been passed around shop with upward of 8 visits for same code..

Time for visit to dealer,,,

Plug in GDS, I prefer the PC based, or laptop,,, I dont like tablet for older stuff

ID vehicle

Engine

Current Data

Select :

MAP volt

TPS volt I think it is

Graph......

stab throttle a number of times,, both trace should in effect "mirror" each other.

Yes

Select Software Management

Engine Adaptive

Follow prompts to reset engine values

ECU UPGRADE

Next

Select "Engine"

Next

Reads ROM.. offers whatever update (if anything available)

Update offered

UPGRADE

Follow prompts to do update


No update available,, we be done with GDS

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Last edited by sbr711; 06-09-2017 at 11:18 PM.
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post #9 of 11 (permalink) Old 06-10-2017, 03:55 AM
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Quote:
Originally Posted by sbr711 View Post
Plug in GDS.....
So, what he's saying in Hyundaiese is you need the PCM adaptive values reset, which on the older models you could do yourself by just disconnecting the battery for a few minutes. I've not done much work on newer models so I'm not sure if that still works. Just be aware that disconnecting the battery usually causes P0106 on these engines, as 2424Goldie pointed out.
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post #10 of 11 (permalink) Old 06-10-2017, 12:22 PM
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Quote:
Originally Posted by AUTOSPARK View Post
So, what he's saying in Hyundaiese

Proper word is "Korr-English"... They make a Korr-English dictionary for translating Korean poor english to good english

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