P041E Diagnostic Trouble Code

P041E 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 P041E diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
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

Possible Causes :

Defective ECU strategies or components will prevent proper regeneration
The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

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. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.

Process Tips

Diagnostic trouble code P041E 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 P041E.

Fortunately, P041E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P041E Trouble Code For Specific Cars

P041E Am General Hummer Air Suspension Front Compressor Relay Circuit Short To Battery
P041E Scion Tc Injection Pump Fuel Metering Control "B" Range/Performance (Cam/Rotor/Injector)
P041E Tmc Costin Motor # 1 Input Circuit Failure
P041E Healey Tickford Passengers Seat Belt Buckle Switch Circuit Short to Battery
P041E Smart Forfour Lamp Air Bag Warning Indicator Circuit Failure
P041E Mercury Grand Marquis Air Suspension LR Corner Up Timeout
P041E Fiat Seicento Leakage Fault