P0A4E Diagnostic Trouble Code

P0A4E 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 P0A4E diagnostic trouble code may include:

The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Faulty PCM
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Diminished fuel efficiency

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.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. 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. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

Process Tips

Diagnostic trouble code P0A4E 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 P0A4E.

Fortunately, P0A4E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0A4E Trouble Code For Specific Cars

P0A4E Abarth 1000 1-2 Shift Malfunction
P0A4E Nissan Quest Crankshaft Position Sensor A Circuit High Input
P0A4E Ferrari 196 Injector High Side Open - Bank 1
P0A4E Holden Viva Powertrain DTCs Available in Another Module
P0A4E Volvo 122 SCP (J1850) Invalid or Missing Data for Charging System
P0A4E Honda Acura Tl Pressure Control Solenoid C Control Circuit / Open
P0A4E Fiat 1900 Lack Of HO2S21 Switch - Sensor Indicates Lean