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Discussion Starter #1
So I have about 10k miles on my dart and one day I got in the car and it felt like I had no boost under load. Running all motor. Happened once. Figured is was no biggie. Then yesterday (about 2 weeks later) it happened 3 more times.. 3rd time I was going up hill and felt like I wasnt even going to make it. Then the check engine light came on. Every time I have this problem it also comes packaged with a rough idle. It's intermittent but very noticeable. Taking it to the dealer Friday but I checked the code and it's a p0299 supercharger/turbocharger "A" underboost condition. Has anyone else come across this?
 

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So I have about 10k miles on my dart and one day I got in the car and it felt like I had no boost under load. Running all motor. Happened once. Figured is was no biggie. Then yesterday (about 2 weeks later) it happened 3 more times.. 3rd time I was going up hill and felt like I wasnt even going to make it. Then the check engine light came on. Every time I have this problem it also comes packaged with a rough idle. It's intermittent but very noticeable. Taking it to the dealer Friday but I checked the code and it's a p0299 supercharger/turbocharger "A" underboost condition. Has anyone else come across this?
any mods ?
 

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Have you checked to make sure the vacuum hoses are all connected nice and tight?
 

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the vacum hoses to the intake are not under pressure. the pressure starts on the other side of the turbo.
 

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Discussion Starter #7
I checked to make sure there was no obvious boost leaks at throttle body or hot side pipe anywhere. I am a tech. Just not too knowledgable on this issue. Any other thoughts?
 

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How hot was it outside? I experienced a loss of boost yesterday when it was quite warm out while climbing a hill. No light for me however.
 

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Maybe a bad sensor...if its intermittent, that's my guess.
 

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Discussion Starter #11
How hot was it outside? I experienced a loss of boost yesterday when it was quite warm out while climbing a hill. No light for me however.
It was about 70degrees Fahrenheit. And exactly. Climbing hill. Under high load after driving for a while. Took it happening 3 or 4 times before the check engine light popped on
 

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It was about 70degrees Fahrenheit. And exactly. Climbing hill. Under high load after driving for a while. Took it happening 3 or 4 times before the check engine light popped on
If you had no power but you were in boost it could be your waste gate. Just a thought had something very similar happen to me but it's only happened twice.

Sent from my Galaxy Nexus using DodgeDart
 

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My car had this problem a few weeks ago. I had the same code but no CEL. The pinpoint test for this code is to check for clogged intake, clogged exhaust or a crazy boost leak. If all those check out ok the final test says to replace the turbo due to a sticking wastegate.

After I let mine cool down and went for a test drive the problem was gone and has not returned again.
 

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My car had this problem a few weeks ago. I had the same code but no CEL. The pinpoint test for this code is to check for clogged intake, clogged exhaust or a crazy boost leak. If all those check out ok the final test says to replace the turbo due to a sticking wastegate.

After I let mine cool down and went for a test drive the problem was gone and has not returned again.
I concur when it happened to me I just turned the car off and back on and it was good.

Sent from my Galaxy Nexus using DodgeDart
 

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Discussion Starter #15
I concur when it happened to me I just turned the car off and back on and it was good.

Sent from my Galaxy Nexus using DodgeDart
I had the same thing where I had to shut it off. Then 2 weeks later happened 3 times in one day. So I'm getting it fixed lol
 

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Discussion Starter #17
Did your dealer Hassel you about it or did you bring it to them when it happened?

Sent from my Galaxy Nexus using DodgeDart
Well I brought it the first time it happened and there were no codes so they didn't think anything of it. But now it happened multiples so they said to bring it back Friday and they would diagnose the problem (turbo makes the most sense due to terrible internal wastegate)
 
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