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Old 10-17-2012, 08:16 PM   #1
WDE46
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P2227 Code Fixed

There aren't many posts on the P2227 code, so this can be the one for people who have fixed their code. I fixed mine today.

There was a tear in the small hose attached to the F connector off the upper intake boot. I simply super glued it and wrapped it with electrical tape. As soon as I cranked the engine, the SES light turned off. I believe the part that tore was part 9 in the diagram below. Can anyone tell me the part number for this? RealOEM says this part isn't on my car. It's just a short piece of rubber tube about 2 inches long. It joins the F connector and the small vacuum hose.

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Old 10-17-2012, 11:42 PM   #2
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11727545323, 1 meter length. Just changed that hose recently myself.
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Old 10-18-2012, 07:23 AM   #3
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Originally Posted by cvx5832 View Post
11727545323, 1 meter length. Just changed that hose recently myself.
And this will fit over the nipple on the F connector?
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Old 10-19-2012, 05:45 PM   #4
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Well, either my patch job failed or the rubber hose wasn't the problem. The P2227 appeared again tonight on my drive home. Checked my patch job and it was still secure. I have no clue what this could be. My lower intake boot was good, though I wasn't able to remove it. I couldn't see any cracks inside. I'm going to make another attempt at removing the lower intake boot tomorrow. I was unable to view the smaller part that branches off of it. This could be where the hose his torn.

Last edited by WDE46; 10-19-2012 at 05:58 PM.
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Old 10-19-2012, 05:59 PM   #5
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That code is unrelated. Just coincidence you happened to touch that hose or repair it. That hose would throw a P0171/P0174 code which is a system wide lean condition. That code, according to google, seems to be sensor-related. Try cleaning your MAF?
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Old 10-19-2012, 06:05 PM   #6
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That code is unrelated. Just coincidence you happened to touch that hose or repair it. That hose would throw a P0171/P0174 code which is a system wide lean condition. That code, according to google, seems to be sensor-related. Try cleaning your MAF?
I did that a while back. I read a post in my research that had a link to an image of a page from the BMW code book. The P2227 has something to do with a sanity check for the MAF and barometric pressure sensor. I believe it is detecting an air volume discrepancy b/w the MAF and ICV. I have also read numerous posts about people fixing this code with a new lower intake boot.
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Old 10-19-2012, 06:07 PM   #7
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I did that a while back. I read a post in my research that had a link to an image of a page from the BMW code book. The P2227 has something to do with a sanity check for the MAF and barometric pressure sensor. I believe it is detecting an air volume discrepancy b/w the MAF and ICV. I have also read numerous posts about people fixing this code with a new lower intake boot.
The more stuff you replace because it needed to be done anyway will help narrow (if not eliminate) the problem thats causing that code. GL!
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Old 10-19-2012, 06:23 PM   #8
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Yea P2227 does not show up in my Bentley manual, however, it could be missing or misprinted??

Appears to be Barometric pressure related, I believe this Baro sensor is located on the DME board??

Just hope you do not have any more issues with that code.

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Old 10-19-2012, 06:53 PM   #9
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Quote:
Originally Posted by jfoj View Post
Yea P2227 does not show up in my Bentley manual, however, it could be missing or misprinted??

Appears to be Barometric pressure related, I believe this Baro sensor is located on the DME board??

Just hope you do not have any more issues with that code.

Suggest you read the first few links in my signature below.
That's the thing. The car runs absolutely perfectly so I don't know what it is. I reset the code once when I first had it and it took 3 weeks to come back. This time it turned itself off after I patched the hose on the F connector then came on again after 1 day.
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Old 10-25-2012, 09:58 AM   #10
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I need to mention that I was going to reinspect the lower intake boot, but the code went away again several days ago and hasn't come back. Maybe my patch job worked on the vacuum hose.
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Old 10-25-2012, 07:04 PM   #11
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And I jinxed myself. It came back on while I was driving home again. This is ****ing gay.

Last edited by WDE46; 10-25-2012 at 07:05 PM.
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Old 10-25-2012, 07:26 PM   #12
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What scan tool are you using??

It may not be reporting the proper code?
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Old 10-25-2012, 07:49 PM   #13
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I am using my bluetooth scan tool. I don't know the brand. It's pretty generic. I'm gonna get that BMW scanner from Xcar360 sometime soon methinks.
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Old 10-25-2012, 07:57 PM   #14
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Old 12-03-2012, 03:26 PM   #15
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Just updating my thread as I continue to look for a solution.

An observation:

The light has come on about 4 times in the past 2 months. It always happens when I am low on fuel.

Also, this is a common code on all car makes and models. There are numerous posts on the internet, and none find any solution.

Last edited by WDE46; 12-03-2012 at 03:32 PM.
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Old 12-11-2012, 07:26 PM   #16
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I have recently got he same code on my 330i. I only get the code when it's below freezing on my way to work in the morning. On my way home it goes away. It's then fine for a few days until the temp drops again. I have not tried anything yet as I am reading this post to see what I should do to fix.
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Old 03-20-2013, 09:44 AM   #17
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Okay so I have had a long enough time to experiment a little with the causes. The code ONLY appears when I'm below 1/4 tank of gas. I have since kept my tank above that for the past couple months and I have not seen the code. So do you guys think this has to do with low fuel flow or something? Weather doesn't seem to have any real influence on the problem.
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Old 03-20-2013, 09:52 AM   #18
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I have a feeling your maf sensor is going bad. The barometric pressure is measured by the maf sensor in our cars I think. Also, scanning with a BMW scanner would be a huge help.
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Old 03-20-2013, 10:00 AM   #19
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I have a feeling your maf sensor is going bad. The barometric pressure is measured by the maf sensor in our cars I think. Also, scanning with a BMW scanner would be a huge help.
That's what I thought, but the code correlates with low gas. That doesn't relate to the MAF at all. Also, as far as I know the MAF is only for MAF and IAT. The barometer is in the DME I though.

This code is kind of a mystery for all cars, not just my BMW. I can't find where anyone has solved it on any car. People have replaced their electronics (barometer, MAF, etc) and vacuum lines and still got the code later. This makes me think it's an extremely general code. I did find a description of the code that suggests one of two things. Either the barometer is bad (like you suggest) or the car is detecting an unacceptable difference b/w the main MAF sensor reading, and another down the line. The SAP has another MAF sensor on it, so that could have something to do with it. That would indicate either a vacuum leak or a bad MAF (either one). Unfortunately, the fact that the code only appears with low fuel suggests other things.

Last edited by WDE46; 03-20-2013 at 10:03 AM.
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Old 03-20-2013, 10:05 AM   #20
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There has to be a sensor feeding pressure info to the DME. I don't think our cars have a manifold pressure sensor, in which case the maf is the sensor responsible. But I could be wrong and that's where the BMW scanner would be of help. Weird about the low fuel corellation.
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