Code result
P2C90
Crankcase Ventilation System - Hose A Disconnected
Moderate severity
What it means
The ECM detects that crankcase ventilation hose A is disconnected based on pressure or vacuum signals. Unmetered air ingress and oil mist escape are possible.
Is it safe to drive?
Use caution
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
Hose disconnected at fitting
highOne of the most commonly reported causes for this code — check this first.
Hose split or perforated
mediumA plausible cause — test and verify before replacing parts.
Related help
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