OBD-II code · Powertrain (generic, extended)
P2529 Vacuum Reservoir Pressure Sensor Circuit Intermittent
The sensor signal jumps or drops out intermittently — loose connector, vibration, or chafed harness. The ECM filters short transients but flags the input when noise exceeds limits.
Is it safe to drive with P2529?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyLoose connector
- PossibleChafed harness
- Less likelyConnector with intermittent contact under vibration
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Vacuum Reservoir Pressure Sensor, Sensor Wiring
Related codes
- P2525Vacuum Reservoir Pressure Sensor Circuit
- P2526Vacuum Reservoir Pressure Sensor Circuit Range/Performance
- P2527Vacuum Reservoir Pressure Sensor Circuit Low
- P2528Vacuum Reservoir Pressure Sensor Circuit High
- P252AEngine Oil Quality Sensor Circuit
- P252BEngine Oil Quality Sensor Circuit Range/Performance
- P252CEngine Oil Quality Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.