OBD-II code · Powertrain (generic, extended)
P2597 Turbocharger Speed Sensor B Circuit Intermittent
Turbo speed sensor B signal jumps or drops out — vibration, oil mist or chafed wiring at the second turbo.
Is it safe to drive with P2597?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOil mist on the sensor tip
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.6–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Turbo Speed Sensor B, Sensor Wiring
Related codes
- P2593Turbocharger Speed Sensor B Circuit
- P2594Turbocharger Speed Sensor B Circuit Range/Performance
- P2595Turbocharger Speed Sensor B Circuit Low
- P2596Turbocharger Speed Sensor B Circuit High
- P2598Turbocharger Boost Control Position Sensor A Performance - Stuck Low
- P2599Turbocharger Boost Control Position Sensor A Performance - Stuck High
- P259ATurbocharger Boost Control Position Sensor B Performance - Stuck Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.