U010B Diagnostic Trouble Code

U010B is a kind of OBD-II Diagnostic U-Network 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 U010B diagnostic trouble code may include:

Diminished fuel efficiency
Fuel pressure too high
Malfunction Indicator Lamp (MIL) illuminated
Rich or lean exhaust

Possible Causes :

The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Fuel with a large percentage of sulfur will clog the DPF quickly
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. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.

Process Tips

Diagnostic trouble code U010B 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 U010B.

Fortunately, U010B is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U010B Trouble Code For Specific Cars

U010B Abarth 210 4-5 Shift Malfunction
U010B Chrysler New Yorker Evaporative Emission Control System Vent Control Circuit Open
U010B Delage D Hydraulic Oil Temperature Sensor Circuit Intermittent
U010B Ford Country Main Catalyst Efficiency Below Threshold (Bank 2)
U010B Nsu Prinz Cylinder 11 Injector Circuit Low
U010B Lancia Flaminia Speed Wheel Sensor Rear Center Coherency Fault
U010B Mitsubishi Delica Audio Tape Deck Mechanism Fault