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Old 04-12-15, 03:22 PM   #1
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Default Is my turbo done? Fault code p0299

Just after a little advice. I have searched for the answers to this but some clarification would be awesome. I'm not that knowledgable on cars so please bear with me.

I have a 2008 Peugeot 207 gti 1.6 thp. The car seems to have lost a bit of guts lately and I have now got depollution system faulty warning with a check engine light. The car seems to be running fine but just lacking that 'power' it did have. I have had it hooked up to diagnostics at my garage and it has come up with fault code p0299. I believe this is low turbo pressure boost. The turbo/pipes etc has been checked for leaks and all seems fine.

I have been told that it is going to need a new turbo with a quote that seems unbelievable. Is it going to be a case of the turbo is done or can I save it? From my understanding it could be a wastegate/actuator issue? Am I correct? Another thing that has been mentioned is a possible build up of carbon within the turbo and I presume this would kill the turbo off. I know you guys can't give me the reason for why it has issues with the little info I am giving but I am just trying to find possible issues before deciding on the massive decision of a new turbo. Any other ideas or things to rule out?

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Old 04-12-15, 10:33 PM   #2
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I do know that, depending on the particular problem, turbos can be refurbished for a fraction of the cost of a new one.

It may be worth Googling and ringing a few.

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Old 04-12-15, 10:40 PM   #3
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Did they check for a split diaphragm on the divertor valve
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Old 05-12-15, 10:48 AM   #4
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Quote:
Originally Posted by IanML View Post
I do know that, depending on the particular problem, turbos can be refurbished for a fraction of the cost of a new one.

It may be worth Googling and ringing a few.
Yeah I know and will look into that if its a case that the turbo is done. I'm just wondering what components might fail that could cause this issue with a possible cheaper solution. Thanks.

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Did they check for a split diaphragm on the divertor valve
I'm not sure to be honest so will check with the garage. I understand that this is a common fault which could cause my low pressure so will look into it. Any other ideas if this is fine? Thank you for the suggestion.
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Old 05-12-15, 01:48 PM   #5
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That fault code will either be the bov or the boost pressure electro valve which is under the inlet manifold.

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Old 05-12-15, 03:14 PM   #6
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That fault code will either be the bov or the boost pressure electro valve which is under the inlet manifold.

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I was under the impression it was a generic code for low boost pressure and therefore I would have to investigate the cause(s). How do you know it will one of them two? I don't disbelieve you, I'm just trying to understand it all a bit more as I'm really not that knowledgable. Thanks
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Old 06-12-15, 12:48 PM   #7
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access to Peugeot service box, 8 years owning a gti, knowledge gained over those years and knowing several Peugeot master techs.

the bov and the pressure electrovalve are 99% of the time the issues, bov is easy to check, 3 bolts too take it off and pull part off, if any white markings on the black plastic rings then its going and needs replaced, the pressure electrovalve is a bugger to get too as under the inlet manifold, but theres generally scratches on the metallic part of it once u strip it down to investigate.
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Old 06-12-15, 01:33 PM   #8
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Old 06-12-15, 02:28 PM   #9
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Thanks for the help. I wasn't saying you didn't know, was just
curious if that error code was so precise to the problem. My mechanic seemed to think the turbo would be done. I have stripped downed what I believe is the bov, if I'm wrong I'm a right melon haha. I think this is the cause of the issue as it has a split diagram- will try to post a picture. I believe I can replace the stock one with a forge aftermarket recirculation valve? Not sure if I'm allowed to post a link? Thanks for your help, I'm really a novice with car mechanics so I appreciate it.
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Old 06-12-15, 02:37 PM   #10
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BOV is also known as Divertor Valve.
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