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DFI engine issue?

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Old Apr 11, 2009 | 05:57 PM
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Originally Posted by grease
+1!! Diesel engines inject directly into the cylinder. Diesels don't have this problem.
Do diesels (except the very latest ones) even have PCV? they are exempt from smog checks, so I imagine they just vent freely.
 
Last edited by adias; Apr 11, 2009 at 07:05 PM.
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Old Apr 11, 2009 | 06:29 PM
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SOme diesels use PCV's and some use Crankcase Depression Regulator (CDR) valves. This is to maintain a vaccuum in the crank case, providing there isn't any blow by. Mine vents to atmosphere not a reburn like gas jobs.
 
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Old Apr 11, 2009 | 06:38 PM
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There is no problem with the new engines at all!

Can one person come forward that has a problem with an 09 DFI.
I would like to hear it from an actual owner, instead of speculation.
 
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Old Apr 11, 2009 | 06:42 PM
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Originally Posted by Porsche119
There is no problem with the new engines at all!

Can one person come forward that has a problem with an 09 DFI.
I would like to hear it from an actual owner, instead of speculation.
 
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Old Apr 11, 2009 | 06:44 PM
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P119. Ask mdrums about his soot issue. don't know if it is a different issues but I know mdrums is not happy about the situation.
 
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Old Apr 11, 2009 | 07:08 PM
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Originally Posted by Porsche119
There is no problem with the new engines at all!

Can one person come forward that has a problem with an 09 DFI.
I would like to hear it from an actual owner, instead of speculation.
This thread simply raised the question re 9A1 engines. It is a problem in Cayenne's DFI engines, Audi's VW's and others. Raising awareness is a good thing. no one is implying the problem exists in the 9A1 - chances are, given its late design and boxer architecture there is no issue.
 
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Old Apr 11, 2009 | 07:20 PM
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"mdrums" is having nasty black soot issues with his '09S...

http://forums.rennlist.com/rennforum...aust-soot.html
 
Last edited by 500; Apr 11, 2009 at 07:25 PM.
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Old Apr 11, 2009 | 08:12 PM
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Originally Posted by 500
"mdrums" is having nasty black soot issues with his '09S...

http://forums.rennlist.com/rennforum...aust-soot.html
Yes very true. My soot is showing a lot easier because I have the side muffler by pass and the soot is not getting caught by the restrictive side mufflers. When I took my side mufflers off I could pour soot out of them!

Nice huh? Yeah this car is NOT an everyday car to drive...I forsee too many issues.
 
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Old Apr 11, 2009 | 08:19 PM
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Originally Posted by mdrums
Yes very true. My soot is showing a lot easier because I have the side muffler by pass and the soot is not getting caught by the restrictive side mufflers. When I took my side mufflers off I could pour soot out of them!

Nice huh? Yeah this car is NOT an everyday car to drive...I forsee too many issues.
What is your dealer/PCNA saying about this??
 
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Old Apr 11, 2009 | 08:32 PM
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Originally Posted by mdrums
Yes very true. My soot is showing a lot easier because I have the side muffler by pass and the soot is not getting caught by the restrictive side mufflers. When I took my side mufflers off I could pour soot out of them!

Nice huh? Yeah this car is NOT an everyday car to drive...I forsee too many issues.
Do you think this is from a similar type DFI issue like some of the Cayenne's, Audi's etc are having?

If you were able to poor the soot out of the side cans then it sounds like it was not oil based...correct?
 
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Old Apr 11, 2009 | 10:31 PM
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Originally Posted by 500
Do you think this is from a similar type DFI issue like some of the Cayenne's, Audi's etc are having?

If you were able to poor the soot out of the side cans then it sounds like it was not oil based...correct?
The problem of the intake valve gunk in the Cayenne is that it stays there; it does not progress to the exhaust, and if it did it would combust. I do not think mdrums soot is the same thing, but let's see what he finds.
 
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Old Oct 3, 2009 | 04:42 PM
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9A1 issues
Anything new on this front ??
Jack
 
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Old Oct 3, 2009 | 07:56 PM
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yes, my car is still running!
 
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Old Oct 3, 2009 | 09:35 PM
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Originally Posted by pedsurg
Anything new on this front ??
Jack
Less soot latley with normal street driving...absolutly ZERO soot at the track.
 
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Old Oct 4, 2009 | 06:54 AM
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mike's soot
Mike: I think that's good, right ??
What is your interpretation of the change ??

Jack
 
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