P0112 Diagnostic Trouble Code

P0112 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 P0112 diagnostic trouble code may include:

Diminished fuel efficiency
Fuel pressure too high
Malfunction Indicator Lamp (MIL) illuminated
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Faulty IMRC actuator/sensor

Repair Processes :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code P0112 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 P0112.

Fortunately, P0112 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0112 Trouble Code For Specific Cars

P0112 Darracq 8 Heated Catalyst Temperature Below Threshold (Bank 1)
P0112 Lti Tx Traction Control Valve LF Circuit Failure
P0112 Lincoln Mark Lt Throttle position sensor intermittent
P0112 Noble M14 Cylinder 10 Injector Circuit High
P0112 Nissan Grand Clutch Position Sensor Circuit Malfunction
P0112 Toyota Opa Overdrive Band Failed Off
P0112 Opel Super Door Handle Right Front Circuit Failure