Powertrain
generic / SAE
P2526
Vacuum Reservoir Pressure Sensor Circuit Range/Performance
The vacuum reservoir pressure sensor is electrically intact, but the reading does not match the model — vacuum that does not build up after pump activation, does not bleed off when consumers draw, or stays at one value. Often a partly clogged hose, a leaking reservoir or an aged sensor.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 26
Possible causes
- Leaking reservoir or vacuum line high
- Aged sensor with offset drift medium
- Sensor element aged beyond calibration window low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–600 €
- Estimated time: 0.5–2.5 h
- Component: vacuum reservoir
- Component: vacuum lines
- Component: vacuum pump
- MIL / check engine light
Sources
References
sae:J2012