P1A4E Diagnostic Trouble Code

P1A4E 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 P1A4E diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
Rich or lean exhaust

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
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 damage to the tank indicating impact that may have damaged the fuel pump or sender. 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. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code P1A4E 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 P1A4E.

Fortunately, P1A4E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1A4E Trouble Code For Specific Cars

P1A4E Volkswagen Saveiro SAI System Incorrect Downstream Flow Detected
P1A4E Bmw 323 Central Lock Feedback Failure
P1A4E Italdesign Machimoto SCP (J1850) Lack of Acknowledgment for Door Locks
P1A4E Audi S5 Audio Center Amp is not responding
P1A4E Mercedes Sl 60 Air Bag Crash Sensor #2 Ground Circuit Failure
P1A4E Kieft V8 Servo Motor Potentiometer Airintake Left Circuit Short To Battery
P1A4E Monteverdi 400 Battery Power Relay Circuit Open