P02A7 Diagnostic Trouble Code

P02A7 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 P02A7 diagnostic trouble code may include:

Possible spark knock (detonation / pre-ignition)
Poor fuel economy
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
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Look at the plug wires to make sure they are not burnt or laying on the exhaust. 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 P02A7 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 P02A7.

Fortunately, P02A7 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P02A7 Trouble Code For Specific Cars

P02A7 Lancia 037 Speed Wheel Mismatch
P02A7 Peugeot Asphalte Electronic Throttle Monitor Cruise Disable
P02A7 Chery A5 Double Lock Timeout Failure
P02A7 Datsun On-do HO2S Heater Control Circuit (Bank 2 Sensor 2)
P02A7 Fiat Ecobasic Lamp Park Input Circuit Short To Ground
P02A7 Pontiac Banshee Exhaust Pressure Control Valve Malfunction
P02A7 Chevrolet Captiva Driver Power Window One Touch Window Relay Circuit Open