Question about 2004 Dodge Ram 3500 Truck

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2004.5 dodge 3500 wastegate error code

Who can tell me what a po243 error code "wastegate" is? What do I need to do to fix it? Took it to local dealer twice, they wipe the check engine light by the time I get home it is back. Now truck is 1000 miles out of warrenty! Go figure.

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  • tgreul7612 Jan 12, 2009

    Now I understand what it does, but how do I fix it. Do I need to replace the wasteagte? Can I fix the wastegate?

  • Anonymous Mar 02, 2009

    It appears that I have the same issue. The wastegate is frozen. My local mechanic said i would need to have the entire turbo replaced and that it would cost $2,500. Called a local diesel shop nd they think they can get it unstuck. i ahve also seen aftermarket wastegates. BD Performance makes one. This issue is alos causing my truck to not shift until redline. once they clear the code is shifts fine though until the code appears again.



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A wastegate is a valve that diverts exhaust gases away from the turbine wheel in a turbocharged engine system. Diversion of exhaust gases regulates the turbine speed, which in turn regulates the rotating speed of the compressor. The primary function of the wastegate is to regulate the maximum boost pressure in turbocharger systems, to protect the engine and the turbocharger.

It is not really a minor thing. It may not cause a major problem, but you are very likely loosing power and fuel mileage because of it.

Posted on Jan 11, 2009


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Wastegate Solenoid Circuit Error
The ECM regulates turbocharger boost by opening and closing the "wastegate" as necessary. (The wastegate is a vacuum operated bypass valve that limits the ability of the turbo to provide boost.) The Wastegate Solenoid regulates the vacuum supply to the wastegate for proper operation.

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Fault Code Description
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A maladjusted or failed Gear Position switch would be the most common cause for a code 31

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