P290E Diagnostic Trouble Code

P290E 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 P290E diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly

Possible Causes :

Defective ECU strategies or components will prevent proper regeneration
The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code P290E 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 P290E.

Fortunately, P290E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P290E Trouble Code For Specific Cars

P290E Berkeley Twosome Brake Fluid Level Sensor Input Short Circuit To Battery
P290E Buick Xp Damper Low Side Front Circuit Failure
P290E Saab 92
P290E Zagato Hyena
P290E Nsu Prinz Cylinder 11 Injector Circuit Low
P290E Hyundai Veloster SCP (J1850) Invalid or Missing Data for Engine Oil Temp
P290E Mercury Monarch Air Suspension Rear Height Sensor High (SE) Signal Circuit Short To Ground