Thread: DMTL pump bad
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      12-15-2010, 09:03 PM   #13

Drives: '06 AW 330xi
Join Date: Mar 2009
Location: North Jersey/Philly/NYC

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2006 330xi  [3.22]
Originally Posted by dassub View Post
I had it replaced last week, after the car had a check engine light a week after buying it. At first they just reset the code, but it came back and so they replaced the pump. The code hasn't come back *crosses fingers*
The check engine light has nothing to do with the DMTL's emissions related so it trips the SES light.

The CEL may have just been a coincidence.

Originally Posted by iwantaw335 View Post
What codes are you guys getting? I'm getting p2402 and people are saying it's this pump. Does anyone know how to test this pump first before i go and replace it?
You can test the pump with a BT tool. Set the purge valve to the closed position and run the pump....check for leaks or if the pump is running.

I also believe that P code points to a faulty pump but it could also be a leak. Faulty o-rings or a hole in one of the vent tubes. You really have to get your EVAP system smoked to check for leaks.

BTW, how do you guys over fill a gas tank? I've never had that happen to me.