OBD Guide

P0028

Intake valve Control Solenoid Circuit Range/Performance Bank 2

P0028 is an OBD-II diagnostic trouble code meaning: Intake valve Control Solenoid Circuit Range/Performance Bank 2. Common causes: faulty vvt solenoid bank 2, open or short circuit in solenoid wiring. Estimated repair cost: $22–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–278 (est.)

Symptoms

  • Rough engine idling
  • Reduced engine power
  • Increased fuel consumption
  • Difficulty starting the engine
  • Engine knocking or knocking
  • Check Engine Light Illuminated
  • Unstable engine speed

Causes

  • Faulty VVT solenoid bank 2
  • Open or short circuit in solenoid wiring
  • Contaminated or old engine oil
  • Clogged oil filter
  • Low oil pressure in the system
  • Faulty camshaft phase shifter
  • Problems with the ECU or its software
  • Mechanical wear of the camshaft

How to Fix

  1. Connect a diagnostic scanner and read all error codes
  2. Check the level and condition of the engine oil, replace if necessary
  3. Inspect the VVT solenoid wiring and connectors for damage.
  4. Check the resistance of the VVT solenoid with a multimeter (usually 6-12 ohms)
  5. Measure the supply voltage at the solenoid connector with the engine running.
  6. Remove and clean the VVT solenoid from dirt and deposits
  7. Check solenoid operation using diagnostic equipment
  8. If necessary, replace the faulty VVT solenoid
  9. Clear error codes and test drive to see if the problem is resolved

Related codes

Error P0028 by Vehicle Brand

FAQ

What does the P0028 code mean?

P0028 is an OBD-II diagnostic trouble code that indicates: Intake valve Control Solenoid Circuit Range/Performance Bank 2

What causes a P0028 error code?

The most common causes of P0028 include: Faulty VVT solenoid bank 2; Open or short circuit in solenoid wiring; Contaminated or old engine oil; Clogged oil filter.

How do I fix a P0028 diagnostic trouble code?

To fix P0028: Connect a diagnostic scanner and read all error codes. Check the level and condition of the engine oil, replace if necessary. Inspect the VVT solenoid wiring and connectors for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0028?

Limited driving only, diagnose soon

How much does it cost to fix P0028?

The estimated repair cost for P0028 is $22–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat