P234D

Cylinder 9 Pressure Too Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–167 (est.)

Symptoms

Misfire in cylinder 9
Reduced engine power
Unstable engine idling
Increased fuel consumption
Check Engine Light Is On

Causes

Wear of piston rings in cylinder 9
Damage to the valves of cylinder 9
Faulty spark plug in cylinder 9
Problems with the fuel injector of cylinder 9
Compression leak in cylinder 9

How to Fix

Check compression in cylinder 9
Inspect the spark plug and wires in cylinder 9
Check the condition of the fuel injector of cylinder 9
Diagnose the condition of valves and piston group
If necessary, replace worn parts

Related codes

P234C P234E P0309