OBD-II Generic Error Code P0027: How to Fix It

Medium 1-2 hours Medium Severity Verified June 2026
Error Code
P0027
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P0027 indicates that the Engine Control Module (ECM) has detected a problem with the exhaust valve control solenoid circuit for bank 1. This usually means the solenoid is stuck, has an electrical fault, or the oil pressure is low. It can cause reduced engine performance, rough idle, or increased emissions.
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Tools You'll Need

How to Fix Error Code P0027

  1. Check Engine Oil Level and Condition

    Always work on a cool engine to avoid burns.
  2. Inspect Wiring and Connectors

  3. Test the Exhaust Valve Control Solenoid

    Do not apply power to the solenoid for more than 1-2 seconds as it may overheat.
  4. Replace the Exhaust Valve Control Solenoid

  5. Clear the Error Code and Test Drive

Parts You May Need

Exhaust valve control solenoid (VVT solenoid)
Check Price on Amazon
Engine oil and filter (if oil is dirty)
Check Price on Amazon
Exhaust valve control solenoid (VVT solenoid)
Check Price on Amazon
Engine oil and filter (if oil is dirty)
Check Price on Amazon
Exhaust valve control solenoid (VVT solenoid)
Check Price on Amazon
Engine oil and filter (if oil is dirty)
Check Price on Amazon
Exhaust valve control solenoid (VVT solenoid)
Check Price on Amazon
Engine oil and filter (if oil is dirty)
Check Price on Amazon
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When to Call a Professional

If the code returns after replacing the solenoid, or if you are not comfortable working on engine electrical systems, consult a professional mechanic. Additionally, if the oil pressure is low or there are internal engine issues, professional diagnosis is recommended.

Frequently Asked Questions

What does error code P0027 mean?
P0027 means the exhaust valve control solenoid circuit on bank 1 is out of range or has a performance issue. It often points to a faulty solenoid, wiring problem, or low oil pressure.
Can I drive with a P0027 code?
You may drive short distances, but it is not recommended. The code can cause poor performance, reduced fuel economy, and potential engine damage if ignored.
What tools do I need to fix P0027?
You will need an OBD2 scanner, a multimeter, a socket set, and possibly a replacement VVT solenoid. Basic hand tools are sufficient.
How much does it cost to fix P0027?
If you DIY, the cost is about $30-$100 for a solenoid. If a professional does it, expect $200-$400 including labor and diagnosis.
Is P0027 the same on all cars?
Yes, P0027 is a generic OBD-II code, so the meaning is consistent across all vehicles. However, the location and type of solenoid may vary.