Author Topic: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)  (Read 6396 times)

Offline le0n

DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« on: February 14, 2016, 05:16:39 PM »
Just a few quick shots to show a possible fix for the P0106 code.

There's another thread I have that discusses the reasoning behind what I'm going to show here. It's been 70k+ miles since I've cleaned this. The error code has been gone the entire time.

Anyway, remove the necessary components to allow access to the throttle body.

Remove the harness clip from the bottom of the throttle body:


Remove the four screws that hold the throttle body to the intake manifold:

(Do not remove the vacuum hose from the top of the throttle body. Once the screws are off, just move the throttle body out of the way and rest it on the intake manifold.)

Here's a shot of the intake plenum with the oil pooled in the bottom of it:


Now remove this little clip by pulling up on it to allow the harness to move away from the MAP Sensor:


Once it is out of the way, you'll be able to put a driver in there and remove the one torx screw that holds the sensor in place:


Freshly removed sensor:



Here is the MAP sensor after I wiped the oil off of it:

(Note the bead of oil still on the probe)

I took a clean napkin and held it behind the sensor and shot it with compressed air:

(it had more oil than i thought it did)

Here is the cleaned sensor:


Back to the intake. I took a clean sock and flipped it inside out. It seems to have more oil grabbing abilities this way, hah hah:


Push it in all of the cracks and crevices with the help of a short small stick to soak up any oil that has made its way in to the intake:


Here is the result of that step. I put the other clean sock for reference.

Side one:

(The light brown is the free oil that was sitting in there. the black is just light carbon dust)

Side two:


Oil pooled on the base of the sensor port:


Push a rolled napkin in the port to clean it out:


Oil removed:


Here is a shot of my throttle body. It's freaking filthy. For the sake of this experiment, I chose to leave it dirty to see if the intake cleaning alone will rid the P0106 code. If all is good after a 1,000 miles or so, I'll open it up and clean the throttle body.


That's about it. Reassemble everything and then clear any error codes.

Good luck.


edit: that cleaning i did only lasted 6k miles before the light came back on, so i went back to clean some more.

ok. i got in there and removed the hose that goes to the PCV. you have to remove the throttle body to get this off.

this much oil was in the port and area immediately around the PCV hose port on the inside of the plenum:

the other corner of the napkin was from cleaning the port at the PCV. not much came out of there. the smaller scrunched napkin is from cleaning the MAP sensor and MAP sensor port.

i took the hose inside and washed it with water until the water ran clean. it still smelled of hydrocarbons, so i put the water to extremely hot and also put dishwashing liquid inside the hose. i held a bit of hot water in the hose by putting my thumbs over both ends. i agitated it for a few seconds and then ran hot water through it. the water ran brown for a second, so i knew it freed some old oil in there. i repeated a second time and it released another layer of oil. the third time i did it, no oil came out, only clean soapy water.

peeked in there again to see what oil was in there. it's been about 7k miles, i think, maybe a bit more:


anyway, cleaned it again, this time really focusing on the areas around the MAP sensor port and the PCV hose port:


i also removed the MAP sensor and cleaned it and the port area once again, then re-installed everything.

oh yeah, i cleaned the throttle body this time too.

so the code was still off from last week, so no need for me to clear any codes.

i'm hoping this will go 10k miles without throwing the CEL again.

i can say that it is definitely cleaner than the last cleaning i gave it.

i'll report back.
« Last Edit: May 29, 2016, 11:04:58 AM by le0n »

Offline txjet98

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Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #1 on: February 15, 2016, 08:43:32 AM »
Nice writeup!


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Offline alisa

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Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #2 on: February 15, 2016, 12:24:20 PM »
Hey, I am missing a pair of socks.
« Last Edit: February 23, 2016, 09:56:59 AM by the rapist »
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Offline toplessTiTs

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Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #3 on: February 16, 2016, 08:43:02 AM »
Nice writeup!


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x2

Offline le0n

Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #4 on: February 29, 2016, 10:19:11 AM »
update: it's been over 1k miles and the error code has not surfaced again.

now i just need to find time to go back in there an clean the throttle body.

Offline toplessTiTs

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Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #5 on: March 02, 2016, 07:38:45 AM »
Glad to hear the code is gone so far.
More importantly, were you able to clean the socks and restore them back to their original white?
Also, have you found time to fix the holes in the socks?

Offline le0n

Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #6 on: March 03, 2016, 12:15:48 AM »
^^ they're currently in the shop. talking to VWOA and it looks like they are going to goodwill the replacement sock because they feel the whiteness cannot be fully restored.

as far as the other sock with the holes, they stated that because it is normal wear and tear, it would not be covered.

Offline alisa

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Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #7 on: March 17, 2016, 10:19:29 AM »
 ;D
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Offline toplessTiTs

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Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #8 on: March 25, 2016, 10:40:54 AM »
^^ they're currently in the shop. talking to VWOA and it looks like they are going to goodwill the replacement sock because they feel the whiteness cannot be fully restored.

as far as the other sock with the holes, they stated that because it is normal wear and tear, it would not be covered.
:rofl:

Offline AntoineCon

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Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #9 on: October 04, 2017, 12:04:22 PM »
Thanks for the tutorial!

Offline le0n

Re: DIY: 2.5L MKV MAP Sensor Cleaning (P0106)
« Reply #10 on: October 05, 2017, 01:48:44 AM »
^^ no problem.