P0299 - Lower Limit Exceeded
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AudiWorld Super User
Joined: Jan 2001
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From: NJ->CO
P0299 - Lower Limit Exceeded
For the archives.
I know from the search that the consensus is the DV is busted. Stealership only reset the CEL and said if it comes back on to bring it back and they'll have to do some more diagnostics.
I know from the search that the consensus is the DV is busted. Stealership only reset the CEL and said if it comes back on to bring it back and they'll have to do some more diagnostics.
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Joined: Mar 2000
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From: Utah, USA
My CEL didn't return even though my DV was torn
I cleared the codes and my CEL didn't come back. Listen to the sound, is it down on power?
If they are hesitant to replace it, just do it yourself. It's a relatively inexpensive part and you can do it pretty easily.
Make sure you get the new C valve. One dealer tried to sell me a B valve because they had it in stock...
John
If they are hesitant to replace it, just do it yourself. It's a relatively inexpensive part and you can do it pretty easily.
Make sure you get the new C valve. One dealer tried to sell me a B valve because they had it in stock...
John
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VAG-Com - Meassure Requested vs Actual Boost...
If there's a big difference between the two it means you have a boost leak, chances are the source of your leak will be the DV.
Note: boost measured includes atmospheric pressure which is about 850mbar at 5500ft up here in Johannesburg.
This is what it should look like when graphed in Excel
<img src="http://members.audiclubsa.org.za/d/12025-1/No+Boost+leak.jpg">
This is what it looked like with a busted DV
<img src="http://members.audiclubsa.org.za/d/12027-1/Boost+leak.JPG">
and this is what the DV looked like
<img src="http://members.audiclubsa.org.za/d/12040-1/DV+Broken.JPG">
appologies for the out of focus pic, I blame in it on the camera phone, but it's good enough to see the problem.
PS - This was a revision "C" DV, it lasted about 10 000miles.
Note: boost measured includes atmospheric pressure which is about 850mbar at 5500ft up here in Johannesburg.
This is what it should look like when graphed in Excel
<img src="http://members.audiclubsa.org.za/d/12025-1/No+Boost+leak.jpg">
This is what it looked like with a busted DV
<img src="http://members.audiclubsa.org.za/d/12027-1/Boost+leak.JPG">
and this is what the DV looked like
<img src="http://members.audiclubsa.org.za/d/12040-1/DV+Broken.JPG">
appologies for the out of focus pic, I blame in it on the camera phone, but it's good enough to see the problem.
PS - This was a revision "C" DV, it lasted about 10 000miles.
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Thread Starter
AudiWorld Super User
Joined: Jan 2001
Posts: 8,707
Likes: 524
From: NJ->CO
Yeah it feels sluggish. Luckily the CEL did come back.
Unfortunately they're backed up on appointments.
I know where the DV is, but are there any write-ups on replacement. Do you have to get at it from underneath the car or remove some of the plastic parts on top?
I know where the DV is, but are there any write-ups on replacement. Do you have to get at it from underneath the car or remove some of the plastic parts on top?
