P0A72 Diagnostic Trouble Code

P0A72 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 P0A72 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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.

Process Tips

Diagnostic trouble code P0A72 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 P0A72.

Fortunately, P0A72 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0A72 Trouble Code For Specific Cars

P0A72 Vauxhall Astra J PRC Solenoid Circuit Malfunction
P0A72 Sunbeam-talbot Rapier Master Cylinder Pressure Sensor Circuit Open
P0A72 Seat Salsa Input/Turbine Speed Sensor Circuit Intermittent
P0A72 Continental Mk Ii Fuel Select Switch Malfunction
P0A72 Mazda Levante Turbo Charger Bypass Valve Control Circuit High
P0A72 Mercedes A 200 ABS Functions Temporarily Disabled
P0A72 Alvis Silver Crest Air Bypass Valve System