The powertrain control module detected that the measured pressure in cylinder 11 exceeded the expected range during operation. This condition can arise from over‑fueling, excessive boost pressure, or a sensor fault.
A leaking or over‑fueling injector can raise cylinder pressure beyond normal limits.
A stuck wastegate or faulty boost solenoid can cause excessive boost pressure in the cylinder.
When the EGR valve does not open, exhaust gas is not diverted, leading to higher cylinder pressure.
A failing sensor or poor electrical connection may report pressure higher than actual.
A rare software or hardware fault in the PCM could misinterpret sensor data, but this is unlikely.
No. The PCM is rarely the cause; most often the issue is a faulty injector, boost system problem, or sensor fault.
You may be able to drive briefly, but prolonged operation can lead to engine damage or reduced performance, so the problem should be addressed promptly.
The code is generic and used by many manufacturers, though the exact definition and required repairs can vary by make and model.
Only if testing shows the sensor is providing inaccurate readings; many cases are resolved by fixing the injector or boost system instead.