Code P0299 pulled after check engine light lit

MARK PHILBROOK

MEMBER
2004 VOLVO V40
98,500 MILES

Hello.I noticed my turbo seemed not to be kicking in, check engine light illuminated and this code was pulled. Cannot find info online on how to troubleshoot. It seems to be running fine, but runs up to about 4000 rpm's before shifting into third. Is this going to be an issue for the engine if not fixed right away?Any ideas on how I can find out what's going on. Thanks in advance for your help. I've only had the car a few months and it was owned in Massachusetts previously. Snow, salt, all that cold weather stuff that corrodes everything.

Monday, September 16th, 2013 AT 11:23 AM

3 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

This is a code for turbo boost under pressure, it will not hurt the engine so much that it is just not going to develop the power as intended and it will be very sluggish. Problem will be with the turbo control for the waste gate, it may be leaking boost back into the exhaust, get this looked at first.

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Saturday, September 21st, 2013 AT 9:23 PM

MARK PHILBROOK

MEMBER
2 POSTS

Thank you very much for your response. I am under the gun monetarily and assume that I may have to replace the waste gate (what is the control for the waste gate?). This is my first turbo and have no idea what I can do personally to try to remedy this situation. This was my Dad's car and he just passed. Just wanted to keep it running well as I enjoy the idea that it was his and I have something to remember him by. Again, my thanks for your help.

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Sunday, September 22nd, 2013 AT 8:10 PM

MHPAUTOS

MECHANIC
31,937 POSTS

There are two types of wastegate, most common of which is the internal wastegate. This is usually found on cars with low boost settings like 5 psi or 6 psi, or even up to 10 psi. An internal wastegate is found inside the turbo housing and is a crucial component of the turbo itself. The diaphragm is connected to a hose that goes to the turbocharger compressor outlet, charge pipes or intake manifold. The gate is opened when the diaphragm on the wastegate is actuated. When boost pressure exceeds a predetermined amount, the diaphragm opens the spring-loaded wastegate bypass flap, allowing some of the pressure to go around the turbo's impeller, slowing it down. The excess pressure is then evacuated to the exhaust

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Monday, September 23rd, 2013 AT 2:37 AM