Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 29
Possible causes
- Loose connector high
- Chafed harness medium
- Connector with intermittent contact under vibration low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 60–400 €
- Estimated time: 0.4–1.5 h
- Component: vacuum reservoir pressure sensor
- Component: sensor wiring
- MIL / check engine light
Sources
References
sae:J2012