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      02-09-2013, 04:50 PM   #1
Madill21
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P0299 error code, need help!

Turbocharger/supercharger 'A' underboost condition

Hey guys. Can anyone enlighten me as to what this actually means and what needs to be done about it.
I'm running a JB4 on map 5 with a DCI only on 93 octane. The car puts me into limp mode when I'm WOT in 3/4 gear and reaching 4500+ rpm.
Doesn't happen with half throttle or anything.

I appreciate your input ahead of time!
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      02-09-2013, 09:38 PM   #2
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Anyone encounter this before??
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      02-11-2013, 05:40 AM   #3
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Nobody has had this code? Searching comes up with nothing and even google shows me different makes of cars with this code.

When I get on a computer ill load the image from INPA that shows the error code.
I would love any help out there. Not sure if it needs to go into dealer or not.
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      02-11-2013, 06:15 AM   #4
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boost leak probably. read the code with JB4
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      02-11-2013, 06:53 AM   #5
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Running stock DVs or Forge? Could be leak in vacuum lines or stuck Forge DVs.
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      02-11-2013, 08:23 AM   #6
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Running stock. Just JB4 and DCI.
Only happens under load 3-4 gear at higher rpm. WOT in 1-2 no issue.

And reading the code with the JB4? I know that's a feature but would it not just show the same code...
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      02-11-2013, 08:49 AM   #7
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just do it, probably a leak anyway.
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