P0AE4 Diagnostic Trouble Code

P0AE4 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 P0AE4 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
Rich or lean exhaust

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.
Dirty air cleaner element Damaged DPF

Repair Processes :

Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. 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.

Process Tips

Diagnostic trouble code P0AE4 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 P0AE4.

Fortunately, P0AE4 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0AE4 Trouble Code For Specific Cars

P0AE4 Toyota Cynos O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)
P0AE4 Seat Bolero Injector Circuit Open / Shorted - Cylinder #3
P0AE4 Salmson 2300 Illuminated Entry Input Open Circuit
P0AE4 Fiat Regata Lamp Warning Relay Circuit Short To Ground
P0AE4 Saab 9.3 Ignition Run/Acc Circuit Failure
P0AE4 Beijing Bj 2020 B Camshaft Position - Timing Over-Retarded (Bank 1)
P0AE4 De Dietrich De Dietrich HO2S Heater Resistance (Bank 1 Sensor 1)