OBD-II code · Powertrain (generic, extended)
P2090 Camshaft Position B Actuator Control Circuit Low (Bank 1)
Drive voltage to the exhaust VVT oil control valve on bank 1 is below the lower limit. Same failure pattern as P2088 but for the exhaust cam phaser.
Is it safe to drive with P2090?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyDrive line shorted to ground
- PossibleExhaust VVT solenoid internally shorted
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Vvt Solenoid, Vvt Wiring
Related codes
- P2088Camshaft Position A Actuator Control Circuit Low (Bank 1)
- P208DReductant Pump A Control Circuit High
- P208EReductant Injection Valve Stuck Closed (Bank 1 Unit 1)
- P208FReductant Injection Valve Stuck Closed (Bank 2 Unit 1)
- P2091Camshaft Position B Actuator Control Circuit High (Bank 1)
- P2092A Camshaft Position Actuator Control Circuit Low (Bank 2)
- P2093A Camshaft Position Actuator Control Circuit High (Bank 2)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.