U2926 Diagnostic Trouble Code

U2926 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 U2926 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. 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 U2926 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 U2926.

Fortunately, U2926 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U2926 Trouble Code For Specific Cars

U2926 Alfa Romeo Alfetta Accelerometer Sensor Circuit Failure
U2926 Dacia 1310 Fuel Temperature Sensor #2 Circuit Open
U2926 Paterson Model 47 Driver Side, Side mount Airbag Low capacitance on Squib
U2926 Mitsubishi Lancer Evo 8 Aux A/C Blower Motor Relay Circuit Short to Ground
U2926 Holden Jb Power Sliding Door Override Switch Input Ckt Short to Gnd
U2926 Osca 2000 Door Passenger Set Switch Stuck Failure
U2926 Mercedes C 180 ABS Hydraulic Pump Motor Circuit Short To Battery