P2703 Diagnostic Trouble Code

P2703 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 P2703 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
Poor acceleration

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.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. 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 P2703 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 P2703.

Fortunately, P2703 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P2703 Trouble Code For Specific Cars

P2703 Maserati Gt Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance
P2703 Mercedes Cl 55 ABS Inlet Valve Coil RF Circuit Open
P2703 Honda Avancier Pressure Control Solenoid C Control Circuit Range/Performance
P2703 Volvo 440 SCP (J1850) Invalid or Missing Data for Electric Defrost
P2703 Mazda Cx-3 Transmission Transfer Case Disengaged Solenoid Short to Ground
P2703 Chevrolet Two-ten
P2703 Proton Savvy Fuel Tank Pressure Sensor Circuit Open