Intake Valve Control Solenoid Circuit Range/Performance Bank 1
What it means
P0026 means the ECM commanded the bank 1 intake valve-timing (VVT) solenoid, but the resulting camshaft position was out of the expected range. It's a performance fault rather than a wiring short, and it's frequently caused by dirty or low oil, a sticking solenoid, or clogged oil passages. The engine may idle rough and lose some power.
Can I keep driving? Usually drivable but not ideal — the engine may idle rough and lose some power. Fix it soon, since it often stems from dirty or low oil that can cause further wear.
Real-world scan data
Appears alongside · share of P0026 scans
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Rough or unstable idle
- Reduced power and poor acceleration
- Reduced fuel economy
Common causes
Most likely first
- Dirty, low, or wrong-viscosity oil, or an overdue oil change restricting flowLikely
- Stuck or faulty intake valve control (VVT) solenoid, bank 1Common
- Clogged or dirty oil passages or the solenoid screenCommon
- Worn camshaft phaserLess often
- Wiring or connector problems at the solenoidLess often
How to diagnose & fix
Work through it in order
- Check engine oil level and condition first; change oil and filter if dirty or overdue.
- Scan and read freeze-frame data to confirm conditions when the fault set.
- Test the intake VVT solenoid; clean or replace it if it's sticking or out of spec.
- Clean clogged oil passages and the solenoid screen.
- Inspect wiring and connector, and replace the phaser only if it proves worn.
FAQ
Quick answers
Is it safe to drive with P0026?+
Can I just clear P0026?+
Related codes
Read & clear P0026 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.