U011E Diagnostic Trouble Code

U011E 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 U011E diagnostic trouble code may include:

Vacuum leak on the engine
Reduction in engine performance, especially at low RPM levels
Engine surge
Poor acceleration

Possible Causes :

Dirty air cleaner element Damaged DPF
A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

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. 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.

Process Tips

Diagnostic trouble code U011E 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 U011E.

Fortunately, U011E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1205 Trouble Code For Specific Cars

U011E Auto-union 1000 Aux Heater Fuel Pump Circuit Open
U011E Renault Trafic HO2S Heater Control Circuit High (Bank 1 Sensor 2)
U011E Bizzarrini Bz-2001 Brake Switch Circuit Failure
U011E Nsu Typ Cylinder 2 Contribution/Balance Fault
U011E Mercedes-benz 380 Air Bag Passenger Pressure Switch Circuit Open
U011E Daimler Double Six Heated Backlite Input Circuit Failure
U011E Oldsmobile Recon Damper LF Circuit Failure