U0890 Diagnostic Trouble Code

U0890 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 U0890 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Dirty air cleaner element Damaged DPF

Repair Processes :

Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. 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.

Process Tips

Diagnostic trouble code U0890 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 U0890.

Fortunately, U0890 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U0890 Trouble Code For Specific Cars

U0890 Minerva 30 Anti Theft Input Signal Circuit Failure
U0890 Holden Maloo Power Supply #1 Circuit Short to Ground
U0890 Kia Rio Ii Secondary Air Injection System Relay A circuit Malfunction
U0890 Talbot 2500 Mirror Passenger Horizontal Feedback Potentiometer Circuit Open
U0890 Rch 25 Fuel Volume Regulator Control Circuit Low
U0890 Hillman Imp PATS Is Disabled (Check Link Between PATS And Transponder)
U0890 Lada 119 Servo Motor Vent Circuit Failure