Subaru Error Code P0028: How to Fix It

Error Code

P0028

Brand

Subaru

Product Type

automotive

Severity

Medium

DIY Difficulty

Medium

Estimated Fix Time

2-4 hours

Tools You'll Need

• OBD2 scanner
• Socket wrench set
• Multimeter
• Torque wrench
• Oil drain pan
• Brake cleaner
• Wire brush

How to Fix Error Code P0028

1. Scan for Additional Codes

   Ensure the engine is off and the key is removed before connecting the OBD2 scanner.

2. Check Engine Oil Level and Quality

   Check oil when engine is cool and on level ground for accurate reading.

3. Inspect VVT Solenoid Bank 2

   Allow engine to cool completely before touching any components to avoid burns.

4. Test Solenoid Electrical Resistance

   Ensure ignition is off and disconnect the battery negative terminal before electrical testing.

5. Check Solenoid Oil Screen

   Clean parts in well-ventilated area away from heat sources when using brake cleaner.

6. Test Solenoid Operation

   Only apply power for 2-3 seconds at a time to avoid overheating the solenoid.

7. Inspect Timing Chain and Guides

   This is a complex procedure requiring engine disassembly. Consider professional service if timing chain problems are suspected.

8. Reassemble and Clear Codes

   Use proper torque specifications to avoid damaging cylinder head threads.

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