Code result
P2E68
System Too Lean During Cylinder Deactivation Bank 1
Moderate severity
What it means
During cylinder deactivation on bank 1, the fuel trim of the active cylinders runs persistently lean. Indicates unmetered air ingress or fuel delivery shortfall.
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
Vacuum leak unmasked during deactivation
highOne of the most commonly reported causes for this code — check this first.
Fuel rail pressure low
mediumA plausible cause — test and verify before replacing parts.
Related help
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