What the P0238 code means. P0238 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost pressure sensor A input circuit out of specifications, indicating an open circuit or high voltage condition in the circuit.
Where is the boost pressure sensor located?
The boost pressure sensor is located inside the intake pipe in front of the throttle valve. The Sensor measures the pressure and sends the data to the engine management system.
What happens when a boost sensor fails?
Next to the check engine light, the most noticeable symptoms of a faulty turbo boost sensor are lack of engine power and poor acceleration. This is mainly caused by the ECU which disables the turbo boost to protect the engine. Other symptoms include rough idling, hesitation, and hard starting.
How do you clean a turbo boost sensor?
Zitat von Youtube: Before you put the sensor back smear a little vaseline. Around the o-ring. Put the sensor back into position the reverse way to the way you got it out don't forget to make the electrical connection.
How do you test a boost pressure sensor?
- Remove the pressure sensor from the intake manifold.
- Connect the vacuum hand pump to the pressure sensor.
- Turn on the ignition.
- Set the multimeter to “DC voltage”.
- Set the lower absolute pressure value P-low.
- Test the lower output signal U-low between pin B (2) and earth A (1).
- Replacing the boost sensor if it is shorted internally and not giving the correct input pressure reading to the ECM.
- Repairing the wiring harness if any shorts are found, and securing the harness from getting damaged.
- Replacing the broken connectors causing the shorted or open circuits.
- Poor Fuel Economy. If the ECM is reading low or no vacuum, it assumes the engine is at high load, so it dumps in more fuel and advances spark timing. …
- Lack of Power. …
- Failed Emissions Inspection. …
- Rough Idle. …
- Hard Starting. …
- Hesitation or Stalling. …
- Check Engine Light.
How do you fix P0238 turbocharger boost sensor A circuit high?
What repairs can fix the P0238 code?
Can I clean a boost pressure sensor?
And the sensor should look like this: here inside are small holes – you need to clean them also! You can clean it with petrol or alcohol. Once you finish, you can put it back and you can also reset the adaptation data for ECM – recommended.
How much is a boost sensor?
The average boost pressure sensor replacement cost is between $175 and $200. However, this cost can vary depending on the vehicle you drive and where you take it for repairs.
How do I know if my boost solenoid is bad?
If the boost pressure control solenoid fails to operate, the check engine light will illuminate, especially under hard or sustained acceleration. However, if the vehicle is always driven very lightly, it may never have a reason to actuate, but this depends on the software for the particular vehicle.
How do you clean a boost control valve?
Zitat von Youtube: And you just lift this rubber diaphragm be very careful because it's very thin rubber and you want to inspect the rubber to make sure that there's no tears in it if you've got a tear in the rubber.
Is a MAP sensor the same as a boost pressure sensor?
MAP sensors measure absolute pressure. Boost sensors or gauges measure the amount of pressure above a set absolute pressure.
What are the symptoms of a failing MAP sensor?
Signs of a Broken MAP Sensor