P2094
B Camshaft Position Actuator Control Circuit Low Bank 2
Variable valve timing
Generic OBD-II
Medium
What it means
P2094 means the PCM detected low voltage on the control circuit for the B (exhaust) camshaft position actuator on bank 2 — the solenoid that adjusts variable valve timing. With the actuator held at its default position the engine typically idles rough and feels down on power, but it still starts and runs. The usual cause is a wiring short, the solenoid itself, or restricted oil flow.
Medium
Can I keep driving? Usually drivable — expect rough idle or reduced power; fix it soon to protect economy and avoid related timing faults.
Common symptoms
What you'll notice
- Check-engine light on
- Rough idle or slight stumble
- Reduced power or sluggish response
- Minor drop in fuel economy
Common causes
Most likely first
- Faulty B (exhaust) camshaft actuator oil-control solenoid on bank 2Likely
- Control-circuit wiring shorted to ground (low voltage)Common
- Corroded or loose solenoid connectorCommon
- Dirty or low engine oil / clogged solenoid screen restricting oil flowLess often
- Failed PCM (least likely)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check for companion cam-actuator codes (P2095, P2090).
- Inspect the actuator solenoid connector and wiring for a short to ground or corrosion.
- Verify engine oil level and condition; a dirty oil or clogged screen can hobble the phaser solenoid.
- Test the solenoid resistance against spec; replace it if faulty. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2094?+
For short trips, yes — the engine starts and runs, though it may idle rough or feel down on power. Prolonged driving isn't ideal since valve timing is off, so repair it soon.
Can I just clear P2094?+
It returns until the solenoid, wiring, or oil-flow issue is fixed. Check oil condition as part of the diagnosis.
Related codes
Often seen with P2094
Read & clear P2094 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX