P1E3F Diagnostic Trouble Code

P1E3F 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 P1E3F diagnostic trouble code may include:

Possible spark knock (detonation / pre-ignition)
Poor fuel economy
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
Diminished fuel efficiency

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs. Look at the plug wires to make sure they are not burnt or laying on the exhaust. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code P1E3F 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 P1E3F.

Fortunately, P1E3F is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1E3F Trouble Code For Specific Cars

P1E3F Volkswagen Touran Iii SCP (J1850) Invalid or Missing Data for Audio Control
P1E3F Renault Nervasport Heated Catalyst Efficiency Below Threshold (Bank 2)
P1E3F Dodge Caravan Ignition Coil C Primary/Secondary Circuit Malfunction
P1E3F Mercedes S 420 Air Assist Control Valve Range/Performance
P1E3F Studebaker President Lamp Warning Relay Circuit Failure
P1E3F Ford Telstar Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery
P1E3F Peugeot 404 EGRCHK Solenoid Circuit Malfunction