P236B

Cylinder 12 Pressure Too Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–222 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Misfires
Unstable engine operation
Poor engine starting

Causes

Low cylinder compression
Fuel injector malfunction
Worn or damaged piston rings
Problems with valves (jamming, burnout)
Ignition system malfunction

How to Fix

Check compression in cylinder
Inspect and, if necessary, replace the fuel injector
Check the condition of the piston rings and cylinder
Inspect valves for damage
Check the ignition system (spark plugs, coils, wires)

Related codes

P236A P236C P236D