P3498
Cylinder Deactivation Pressure Sensor Bank 1
What it means
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.
Is it safe to drive?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Pressure sensor failed
highOne of the most commonly reported causes for this code — check this first.
Wiring or connector fault
mediumA plausible cause — test and verify before replacing parts.
Sensor port contaminated by sludge
lowLess common, but worth ruling out after the more likely causes.
Related help
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