Code result
P2336
Cylinder 1 Above Knock Threshold
Moderate severity
What it means
The knock sensor channel for cylinder 1 has registered combustion noise above the calibrated knock threshold beyond what the spark retard map can correct. Often associated with low-octane fuel, EGR malfunction or carbon-induced hot spots.
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
Low octane fuel used
highOne of the most commonly reported causes for this code — check this first.
Carbon deposits causing pre-ignition
mediumA plausible cause — test and verify before replacing parts.
EGR not lowering combustion temperature
mediumA plausible cause — test and verify before replacing parts.
Related help
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