P1286
PPowertrainInjection Control Pressure Too High
What does this code mean?
Severity : HighP1286 indicates injection control pressure out of range, too high. On some diesels this hydraulic pressure is used to actuate the injectors. This is a manufacturer-specific code, so the exact meaning depends on the manufacturer. The engine control module measures a pressure above the expected value.
Symptoms
- Check engine light on.
- Loss of power or limp mode.
- Rough running or unusual injection noise.
- Possible hard starting.
Possible causes
- Faulty injection control pressure sensor.
- Faulty or sticking injection pressure regulator.
- Damaged sensor or regulator wiring or connector.
- Wrong or degraded oil on hydraulically actuated systems.
- Engine control module fault, which is rare.
Diagnosis and repair
- Check the manufacturer definition of the code for your vehicle.
- Compare desired and actual pressure in live data.
- Inspect the sensor and regulator connectors and wiring.
- Check engine oil level and quality if the system uses it.
- Replace the faulty part, clear the code and road test.
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Code
P1286
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012