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2013 Elantra - Cleaned Throttle Body - P0106 #4809815
07/10/18 02:30 AM
07/10/18 02:30 AM
Joined: Aug 2004
Posts: 20,134
CA
The Critic Offline OP
The Critic  Offline OP
Joined: Aug 2004
Posts: 20,134
CA
I was replacing the spark plugs on this vehicle (102K) and decided to clean the throttle body as well (stupid me). The throttle body was not very dirty. Immediately after restarting the vehicle, the check engine light comes on and the idle began surging to 2000 rpm. I scanned and found a P0106. Removed and reseated connector - ok. Checked the PID in the Live Data for the MAP sensor and it read normally. After doing some additional research, I was told to reset the Engine Adaptation Values using a scan tool and to follow the Throttle Valve Position learning procedure found in TSB #13-FL-002. Luckily, my Autel Maxisys Elite had the ability to perform the reset of the adaptation values and after perform the adaptations reset and relearning the throttle valve position, the issue was resolved.

Apparently, the ECM on these vehicles builds a strategy based on certain airflow characteristics from the throttle body and therefore, the ECM expects to see a certain MAP voltage at idle. Since cleaning the throttle body changed the expected airflow at idle and the MAP voltage was different than the expected value, the P0106 fault code was triggered.

Moral of the story: do not clean the throttle bodies on certain cars. You can really open a can of worms.

Last edited by The Critic; 07/10/18 02:31 AM.

2011 Toyota Prius - 177k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 131K - Mobil 1 EP HM 5W-30
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4809816
07/10/18 02:35 AM
07/10/18 02:35 AM
Joined: Dec 2017
Posts: 386
Finland
Bjornviken Online content
Bjornviken  Online Content
Joined: Dec 2017
Posts: 386
Finland
True, but allways disconnect the battery when you do throttle body work

Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4809820
07/10/18 03:02 AM
07/10/18 03:02 AM
Joined: May 2005
Posts: 10,488
ROCHESTER, NY
Char Baby Offline
Char Baby  Offline
Joined: May 2005
Posts: 10,488
ROCHESTER, NY
I had to do an Idle Relearn after clean the TB on the Mazda3 in my signature. I didn't get a CEL however, the idle was surging.


"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: Char Baby] #4809840
07/10/18 05:12 AM
07/10/18 05:12 AM
Joined: Feb 2014
Posts: 1,764
Texas
Dallas69 Offline
Dallas69  Offline
Joined: Feb 2014
Posts: 1,764
Texas
Never clean a tb.
Only causes problems.


2009 Galant-ultra oil and filter
1987 Ford F-150 302
Smittys 5-30
Motorcraft filter
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4809853
07/10/18 05:29 AM
07/10/18 05:29 AM
Joined: Dec 2011
Posts: 4,978
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 4,978
North Carolina
Cleaning a throttle valve and then performing an adaptation is the correct way to do it.

You merely discovered the procedure after the fact instead of reading it before hand.


"Zed's dead baby, Zed's dead."
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4809862
07/10/18 05:41 AM
07/10/18 05:41 AM
Joined: Aug 2003
Posts: 10,935
Buffalo, NY
JTK Offline
JTK  Offline
Joined: Aug 2003
Posts: 10,935
Buffalo, NY
That is odd that values would have changed that significantly, especially given it wasn't dirty looking to begin with.

Like said above and I know it's a dumb question, but did you pull a main fuse or battery lead before hand?


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4809880
07/10/18 05:59 AM
07/10/18 05:59 AM
Joined: Jun 2004
Posts: 2,458
St. Louis
MONKEYMAN Offline
MONKEYMAN  Offline
Joined: Jun 2004
Posts: 2,458
St. Louis
Thanks!


Truth alone triumphs, not untruth.

2017 Elantra SE
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: Dallas69] #4809959
07/10/18 07:45 AM
07/10/18 07:45 AM
Joined: Apr 2017
Posts: 917
Ohio
hallstevenson Online content
hallstevenson  Online Content
Joined: Apr 2017
Posts: 917
Ohio
Originally Posted By: Dallas69
Never clean a tb.
Only causes problems.


False

Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4810001
07/10/18 08:30 AM
07/10/18 08:30 AM
Joined: May 2010
Posts: 1,112
Ocala, Florida
racin4ds Offline
racin4ds  Offline
Joined: May 2010
Posts: 1,112
Ocala, Florida
Throttle bodies need cleaned especially around the 100k mile mark. It's very simple to avoid this headache by disconnecting the battery before you do this type of maintenance and it will relearn on its own.

I just had to replace the TPS sensor on my wife's 05 Hyundai Tucson, Since I was in there I pulled the manifold (V6) and did all 6 spark plugs as well. I pulled the POS terminal off before starting and reconnected when done. No issues at all and the car runs great now. Iridium plugs in the back under the manifold were original with 140k miles and had a gap of over .085!!! The front 3 plugs were changed recently and had normal spec gaps.. apparently a shop screwed the girl I purchased it from when he said he did a "full tune up" smile


Just say NO to thin oils and M1!
05 F350 Powerstroke
05 Hyundai Tucson
08 Legacy GT
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: rooflessVW] #4810024
07/10/18 08:56 AM
07/10/18 08:56 AM
Joined: Aug 2004
Posts: 20,134
CA
The Critic Offline OP
The Critic  Offline OP
Joined: Aug 2004
Posts: 20,134
CA
Originally Posted By: rooflessVW
Cleaning a throttle valve and then performing an adaptation is the correct way to do it.

You merely discovered the procedure after the fact instead of reading it before hand.


Not true - the Hyundai service bulletin did not mention anything about needing to clear the adaptations. The bulletin only asked to perform the throttle valve position learning.


2011 Toyota Prius - 177k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 131K - Mobil 1 EP HM 5W-30
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: racin4ds] #4810026
07/10/18 08:59 AM
07/10/18 08:59 AM
Joined: Aug 2004
Posts: 20,134
CA
The Critic Offline OP
The Critic  Offline OP
Joined: Aug 2004
Posts: 20,134
CA
Originally Posted By: racin4ds
Throttle bodies need cleaned especially around the 100k mile mark. It's very simple to avoid this headache by disconnecting the battery before you do this type of maintenance and it will relearn on its own.


This is dependent on the make. Certain males will relearn on their own (Toyota), but Nissans and apparently some Hyundai’s will not. I do not see how disconnecting the battery would have made a difference. Disconnecting the battery usually does not discharge the ECM to clear its memory.


2011 Toyota Prius - 177k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 131K - Mobil 1 EP HM 5W-30
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4810083
07/10/18 09:51 AM
07/10/18 09:51 AM
Joined: Aug 2009
Posts: 577
Modesto,CA
mehullica Offline
mehullica  Offline
Joined: Aug 2009
Posts: 577
Modesto,CA
Did you spray cleaner into the bore? Or wipe down with a soaked rag?

Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: mehullica] #4810087
07/10/18 09:54 AM
07/10/18 09:54 AM
Joined: Aug 2004
Posts: 20,134
CA
The Critic Offline OP
The Critic  Offline OP
Joined: Aug 2004
Posts: 20,134
CA
Originally Posted By: mehullica
Did you spray cleaner into the bore? Or wipe down with a soaked rag?


Wiped with soaked rag.


2011 Toyota Prius - 177k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 131K - Mobil 1 EP HM 5W-30
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: The Critic] #4810088
07/10/18 09:56 AM
07/10/18 09:56 AM
Joined: Aug 2006
Posts: 9,862
Central Washington
Colt45ws Offline
Colt45ws  Offline
Joined: Aug 2006
Posts: 9,862
Central Washington
Originally Posted By: The Critic
Originally Posted By: racin4ds
Throttle bodies need cleaned especially around the 100k mile mark. It's very simple to avoid this headache by disconnecting the battery before you do this type of maintenance and it will relearn on its own.


This is dependent on the make. Certain males will relearn on their own (Toyota), but Nissans and apparently some Hyundai’s will not. I do not see how disconnecting the battery would have made a difference. Disconnecting the battery usually does not discharge the ECM to clear its memory.

Why wouldnt it? Aren't learned values stored in volatile memory aka, memory that needs power to maintain what is being stored? If you disconnect the battery the memory discharges and becomes corrupt. Next time you run, the CPU finds the memory corrupt and zeros it out.


-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2
Re: 2013 Elantra - Cleaned Throttle Body - P0106 [Re: Colt45ws] #4810122
07/10/18 10:29 AM
07/10/18 10:29 AM
Joined: Aug 2004
Posts: 20,134
CA
The Critic Offline OP
The Critic  Offline OP
Joined: Aug 2004
Posts: 20,134
CA
Originally Posted By: Colt45ws
Originally Posted By: The Critic
Originally Posted By: racin4ds
Throttle bodies need cleaned especially around the 100k mile mark. It's very simple to avoid this headache by disconnecting the battery before you do this type of maintenance and it will relearn on its own.


This is dependent on the make. Certain males will relearn on their own (Toyota), but Nissans and apparently some Hyundai’s will not. I do not see how disconnecting the battery would have made a difference. Disconnecting the battery usually does not discharge the ECM to clear its memory.

Why wouldnt it? Aren't learned values stored in volatile memory aka, memory that needs power to maintain what is being stored? If you disconnect the battery the memory discharges and becomes corrupt. Next time you run, the CPU finds the memory corrupt and zeros it out.



When the negative terminal is disconnected, power is still retained inside modules. If the intent is to fully discharge the modules and “reset them,” one would need to remove both the negative and positive cables, then zip tie them together for a while to fully discharge the modules.

I really try to avoid disconnecting batteries if possible. Radio settings get lost, power windows will need to get reinitalized, etc....owners get unhappy.


2011 Toyota Prius - 177k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 131K - Mobil 1 EP HM 5W-30
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