P011D Diagnostic Trouble Code

P011D is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P011D diagnostic trouble code may include:

Malfunction Indicator Lamp (MIL) illuminated
Carbon Buildup on O2 Sensor
Poor fuel economy
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code P011D is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P011D.

Fortunately, P011D is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P011D Trouble Code For Specific Cars

P011D Packard Eight Driver Door Ajar Circuit Open
P011D Seat Cordoba 2 Injector Circuit Open / Shorted - Cylinder #5
P011D Jowett Jupiter Seat Headrest Feedback Potentiometer Circuit Short to Ground
P011D Nissan President Crankshaft Position (CKP)/Ignition Coil - Cylinder 4 - Early Activation Fault
P011D Chrysler 2-litre Engine Oil Pressure Sensor/Switch Range/Performance
P011D Cadillac Brougham Data Mismatch (receive data does not match what was expected)
P011D Ford Capri Longitudinal Acceleration Threshold Exceeded