Powertrain
generic or reserved
P3498
Cylinder Deactivation Pressure Sensor Bank 1
The engine control module has detected a fault with the bank 1 cylinder deactivation pressure sensor. Newer variable displacement systems use an analogue oil pressure sensor in addition to or in place of the legacy switch; a fault disables closed-loop deactivation control on bank 1.
SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / 98
Possible causes
- Pressure sensor failed high
- Wiring or connector fault medium
- Sensor port contaminated by sludge low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 150–900 €
- Estimated time: 1–4 h
- Component: oil pressure sensor
- Component: engine wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012