P2363 Cylinder 11 Pressure Variation Low

P2363 flags a cylinder 11 pressure signal with too little swing between its low point and the combustion peak. No manufacturer documents this code; cylinder 11 only exists on twelve-cylinder engines, none of which is publicly known with pressure-sensing glow plugs. Saab's 9-5 diesel files the related P039C for cylinder 1 as a Type B signal fault. A flat signal is mostly a sensor matter – the piezo-resistive element has lost sensitivity, or deposits hold the heater rod in place – while a genuine lack of compression in the cylinder is less likely. In Lamborghini's Aventador V12, firing 1-12-4-9-2-11-6-7-3-10-5-8, cylinder 11 is the sixth to fire; the older Lamborghini V12 fired it last. Apart from the warning lamp the driver rarely notices anything.

Likely causes

Symptoms

• Check engine light on
• Engine runs normally in most cases

Repair estimate

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

Parts involved

Related codes

References: saabwisonline.com, borgwarner.com, en.wikipedia.org.