Powertrain, generic (extended)

P2364 Cylinder 11 Pressure Variation High

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

P2364 is stored when the pressure signal of cylinder 11 varies too strongly, from cycle to cycle or within one cycle. No maker publishes this code. Saab's 9-5 diesel has the analogous P039D for cylinder 1, a Type B signal fault reacting to 0.2 s outside its window. Excessive variation can stem from interference on the signal line, a ground connection whose resistance keeps changing, or moisture in the connector, but also from a cylinder whose combustion really scatters – an injector with an unstable spray pattern, or poor fuel. A variation limit is one way to meet CARB's demand for plausibility tests of input sensors. The MIL is usually the only symptom; P2363 covers the opposite, flat signal, and P2360 the short dropouts.

Likely causes

Interference coupling into the signal line
Ground connection with changing contact resistance
Moisture in the glow plug connector
Injector with unstable spray pattern

Symptoms

  • Check engine light on
  • No noticeable effect on driving

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–550
Time1–3.5 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

Related codes

P2363P2360P235DP235AP236EP039D

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