P000B
B Camshaft Position Slow Response Bank 1
The exhaust camshaft phaser on bank 1 responds too slowly to commanded position changes. Same root causes as P000A but on the exhaust cam.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Common causes
Ordered by how often each turns out to be the cause.
- Exhaust VVT solenoid cloggedCommon
- Low oil pressurePossible
- Exhaust cam phaser wornPossible
Parts involved
- VVT Solenoid Exhaust Bank1
- Cam Phaser Exhaust
- Engine Oil
P000B is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.