Powertrain, generic (extended)

P2361 Cylinder 11 Pressure Too Low

Check engine lightOn

EmissionsRelevant

Drive cycleRequired

Limp modeNo

P2361 says the combustion pressure of cylinder 11 is too low although the sensor works electrically. No manufacturer documents this code, since no twelve-cylinder engine with combustion pressure sensing is publicly described. What the code judges is the cylinder itself: if its peak stays clearly below that of comparable cylinders or below the expected value, combustion or compression is lacking. Candidates are an injector with reduced flow or a clogged nozzle, worn rings or a burnt valve that lowers compression, a leak at the glow plug seat, or a sensor drifting low. A compression or leak-down test separates mechanical faults from injection faults. The engine runs unevenly, particularly at idle, and the cylinder 11 misfire code P0311 may be stored as well.

Likely causes

Injector of cylinder 11 with reduced flow or clogged nozzle

Worn piston rings or burnt valve lowering compression

Leak at the glow plug seat

Pressure sensor drifting low

Symptoms

Check engine light on
Uneven running, especially at idle
Possibly misfire code for cylinder 11 as well

Repair estimate

DifficultyHardWorkshop job

Parts and labour€100–2,800

Time1–9 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

cylinder pressure sensor glow plugsensor wiringengine control modulefuel injector

References: law.cornell.edu, borgwarner.com.