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P0248 OBD2: Turbocharger/Supercharger Wastegate Solenoid "B"

P0248 OBD2: Turbocharger/Supercharger Wastegate Solenoid “B”

OBD-II code P0248 refers to an issue with the Turbocharger/Supercharger Wastegate Solenoid “B”. This code is triggered when the engine control module (PCM) detects that the wastegate solenoid is not being controlled properly, potentially leading to serious engine performance issues.

What Does the P0248 Code Mean?

The P0248 code indicates a malfunction in the wastegate solenoid that regulates boost pressure in turbocharged or supercharged engines. The wastegate solenoid allows excess boost to vent, and if it fails, it can cause significant problems in engine performance.

What Causes the P0248 Code?

Several issues can trigger the P0248 code, including:

  • Powertrain Control Module (PCM) failure
  • Wastegate solenoid failure
  • Wiring issues related to the wastegate solenoid

What Are the Symptoms of the P0248 Code?

Symptoms associated with the P0248 code typically include:

  • Lack of boost from the turbo/supercharger
  • Engine performance issues
  • Potentially reduced fuel efficiency

How Serious Is the P0248 Code?

The P0248 code is considered urgent, as it can lead to significant engine damage if not addressed promptly. A malfunctioning wastegate solenoid can cause turbo or supercharger failure, which can be expensive to repair.

How to Diagnose the P0248 Code

Diagnosing the P0248 code involves several steps:

  1. Scan the vehicle’s OBD-II system for trouble codes.
  2. Inspect the wiring and connectors associated with the wastegate solenoid.
  3. Test the wastegate solenoid operation and functionality.
  4. Evaluate the PCM for proper operation.

Common Repairs for the P0248 Code

Common repairs that may be necessary to resolve the P0248 code include:

  • Replacing the wastegate solenoid
  • Repairing or replacing damaged wiring or connectors
  • Replacing the PCM if it is found to be faulty

How Much Does It Cost to Fix the P0248 Code?

The cost to fix the P0248 code can vary widely depending on the underlying issue. Typical repairs might range from $100 to $600, considering parts and labor. Replacing the PCM can be more expensive, potentially exceeding $1,000.

Can I Fix the P0248 Code Myself?

If you have a basic understanding of automotive repair, you may be able to address some issues related to the P0248 code. However, due to the complexity of the components involved, it is often advisable to seek professional help to ensure a proper diagnosis and repair.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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