P0246 Turbocharger Wastegate Solenoid A Low

If you’re a car enthusiast, then you’ve probably heard of the term “turbocharger wastegate solenoid A low”. But what does it mean? In this article, we’ll be diving deep into the world of turbochargers and wastegates, and more importantly, we’ll be discussing what happens when a wastegate solenoid goes low.

What Exactly is a Turbocharger Wastegate Solenoid?

To understand what a turbocharger wastegate solenoid is, we first need to understand how a turbocharger works. A turbocharger is a device that increases the power output of an engine. It does this by compressing the air that enters the engine, which allows more fuel to be burned, resulting in more power.

A wastegate, on the other hand, is a valve that controls the amount of boost pressure produced by the turbocharger. The wastegate controls the pressure by diverting some of the exhaust gases away from the turbine wheel, which reduces the speed of the turbine and, in turn, reduces the boost pressure. The wastegate solenoid is an electronic component that controls the wastegate valve.

When the wastegate solenoid is functioning correctly, it regulates the pressure in the wastegate valve, which results in increased power output. However, when the wastegate solenoid goes low, it can cause a number of issues.

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What Happens When a Turbocharger Wastegate Solenoid Goes Low?

When the wastegate solenoid goes low, it can cause a number of issues. First and foremost, it can cause a loss of power. This is because the wastegate solenoid is not functioning correctly, which means that the wastegate valve is not opening and closing as it should.

Another issue that can arise when the wastegate solenoid goes low is that the engine may start to run rough. This is because the air/fuel mixture is not being properly regulated, which can cause the engine to misfire.

In addition to these issues, a low wastegate solenoid can also cause the turbocharger to fail prematurely. This is because the turbocharger is working harder than it should be, which can cause excessive wear and tear on the components.

How to Diagnose a Low Turbocharger Wastegate Solenoid

If you suspect that your turbocharger wastegate solenoid is going low, there are a few ways to diagnose the issue. The first thing to check is the wastegate solenoid itself. Make sure that all of the connections are secure, and check for any signs of damage or wear.

If the wastegate solenoid appears to be in good condition, then you should check the electrical signal that it is sending to the wastegate valve. You can do this by using a multimeter to test the voltage at the solenoid.

If you are unsure about how to diagnose a low wastegate solenoid, it is always best to take your vehicle to a qualified mechanic.


In conclusion, a low turbocharger wastegate solenoid can cause a number of issues for your vehicle. It can cause a loss of power, a rough-running engine, and can even cause premature failure of the turbocharger. If you suspect that your wastegate solenoid is going low, it is important to have it diagnosed and repaired as soon as possible.


Q: Can I still drive my vehicle if the wastegate solenoid is going low?
A: It is not recommended to continue driving your vehicle if you suspect that the wastegate solenoid is going low. Continuing to drive can cause further damage to your vehicle.

Q: Can I replace the wastegate solenoid myself?
A: While it is possible to replace the wastegate solenoid yourself, it is always recommended to have a qualified mechanic perform the repair.

Q: How much does it cost to replace a wastegate solenoid?
A: The cost to replace a wastegate solenoid can vary depending on the make and model of your vehicle. It is best to check with your mechanic for an accurate estimate.

Q: What are some signs that my wastegate solenoid is going low?
A: Some signs that your wastegate solenoid is going low include a loss of power, a rough-running engine, and a decrease in fuel economy.

Q: How can I prevent my wastegate solenoid from going low?
A: The best way to prevent your wastegate solenoid from going low is to have your vehicle regularly serviced by a qualified mechanic. This will ensure that any issues are caught and repaired before they become major problems.