What does a wastegate solenoid do?
A wastegate is a valve that controls the flow of exhaust gases to 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.
How do I fix code P0243?
What repairs can fix the P0243 code?
- Replacing a wastegate solenoid with an open circuit.
- Repairing or replacing a solenoid wiring connection with corrosion in the pins.
How do you test a wastegate solenoid?
You can test the wastegate itself for proper movement by applying vacuum with a hand pump directly to the line at the solenoid. The rod should have around an inch of travel and go back when released. Assuming good vacuum to the solenoid, you will need to tee in to the line between the solenoid and the wastegate.
How does turbo actuator work?
The turbo actuator does a simple but vital job – it acts as a pressure relief valve that controls the boost output of your turbo, diverting excess exhaust gases away from the turbine wheel. This controls the speed of the turbine, preventing it from over-speeding, and regulating the speed of the compressor.
Can you drive with a bad wastegate actuator?
Yep fine to drive, assuming no actual physical mechanical thing has gone wrong (which you’d definitely have known).
What does the wastegate solenoid do on a Cummins?
Having turbo wastegate problems? The turbocharger wastegate solenoid is pulse width modulated by the PCM to allow fine-tuning of the turbo boost to more exactly meet engine operating conditions.
What causes low boost pressure on wastegate solenoid?
In most cases the solenoid will fail open allowing boost pressure to pass through the solenoid at all times and operate directly on the wastegate actuator limiting boost pressure to the spring setting. Symptoms of low boost pressure include low power and black smoke.
What is the solenoid on a Cummins turbo?
The turbocharger wastegate solenoid is pulse width modulated by the PCM to allow fine-tuning of the turbo boost to more exactly meet engine operating conditions. The solenoid is a common failure point – symptoms of failure will include incorrect boost level and frequently code P0243 (WASTEGATE PRESSURE CONTROL PWM) .
How does the wastegate hose help the engine?
The turbo system supplies the engine with additional air or “boost” inside the fuel injection manifold, and is forced into the combustion chamber to create a more efficient burn. When the turbo builds up too much pressure, it is released by way of the wastegate hose.