OBD Guide

P0027

Exhaust Valve Control solenoid Circuit Range/Performance Bank 1

P0027 is an OBD-II diagnostic trouble code meaning: Exhaust Valve Control solenoid Circuit Range/Performance Bank 1. Common causes: faulty exhaust valve control solenoid, open or short circuit in solenoid wiring. Estimated repair cost: $11–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–167 (est.)

Symptoms

  • Unstable engine idling
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Difficulty starting the engine
  • Engine knocking or knocking
  • Uneven operation in transient conditions

Causes

  • Faulty exhaust valve control solenoid
  • Open or short circuit in solenoid wiring
  • Contaminated engine oil
  • Clogged oil channels of the VVT system
  • Engine ECU malfunction
  • Mechanical malfunction of the phase change mechanism
  • Low oil pressure in the system

How to Fix

  1. Read and record all error codes using a diagnostic scanner
  2. Check the level and condition of the engine oil, replace if necessary
  3. Check electrical connections and VVT solenoid wiring
  4. Measure the solenoid resistance (should be 6-12 ohms)
  5. Check the supply voltage at the solenoid connector
  6. Remove and clean the solenoid from oil deposits
  7. If necessary, replace the faulty solenoid
  8. Clear error codes and test drive
  9. Recheck for errors

Related codes

Error P0027 by Vehicle Brand

FAQ

What does the P0027 code mean?

P0027 is an OBD-II diagnostic trouble code that indicates: Exhaust Valve Control solenoid Circuit Range/Performance Bank 1

What causes a P0027 error code?

The most common causes of P0027 include: Faulty exhaust valve control solenoid; Open or short circuit in solenoid wiring; Contaminated engine oil; Clogged oil channels of the VVT system.

How do I fix a P0027 diagnostic trouble code?

To fix P0027: Read and record all error codes using a diagnostic scanner. Check the level and condition of the engine oil, replace if necessary. Check electrical connections and VVT solenoid wiring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0027?

Limited driving only, diagnose soon

How much does it cost to fix P0027?

The estimated repair cost for P0027 is $11–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat