P236C

Cylinder 12 Pressure Too High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–111 (est.)

Symptoms

Loss of engine power
The engine runs rough
Increased fuel consumption
Detonation knocks
Check Engine light comes on

Causes

Malfunction of the fuel injector of cylinder 12
Problems with the ignition system in cylinder 12
Mechanical damage to the cylinder or piston
Incorrect operation of the valves of cylinder 12
Malfunction of the cylinder pressure sensor

How to Fix

Check the condition of the fuel injector of cylinder 12
Diagnose the ignition system of cylinder 12
Check compression in cylinder 12
Inspect valves and cylinder mechanical components
Check the operation of the pressure sensor

Related codes

P236B P236D P2300