P1E25 Diagnostic Trouble Code

P1E25 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 P1E25 diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. 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.

Process Tips

Diagnostic trouble code P1E25 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 P1E25.

Fortunately, P1E25 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1E25 Trouble Code For Specific Cars

P1E25 Mitsubishi Asx Audio Navigation Mute Input Ckt Failure
P1E25 Mean Sonora A/C Refrigerant Temperature Circuit Range/Performance
P1E25 Porsche Cayenne Type 9pa
P1E25 Maybach Sw35 Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure
P1E25 Opel Senator Door Ajar RR Circuit Short To Ground
P1E25 Qvale Mangusta Fuel Temperature Sensor #2 Circuit Short to Battery
P1E25 Cunningham Roadster Fuel Temperature Sensor #1 Circuit Short to Ground