P03E2 Diagnostic Trouble Code

P03E2 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 P03E2 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
Hesitation upon acceleration

Possible Causes :

Some aftermarket accessories and performance modifications
A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
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. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.

Process Tips

Diagnostic trouble code P03E2 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 P03E2.

Fortunately, P03E2 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P03E2 Trouble Code For Specific Cars

P03E2 Volkswagen Karmann Cheetah Right Front Wheel Pressure Reduction Performance Problem
P03E2 Jaguar Xkr Seat Driver Rear Down Circuit Open
P03E2 Suzuki X90 Mirror Driver Vertical Feedback Potentiometer Circuit Short to Ground
P03E2 Hino Contessa Pedal Correlation PDS1 and LPDS Low
P03E2 Maudslay 2-l Transmission Range Display Circuit Malfunction
P03E2 Mazda Drifter Transmission Transfer Case System Concern - Servicing Required
P03E2 Austin Princess Aux A/C Blower Speed 2 Circuit Failure