P1ECC Diagnostic Trouble Code

P1ECC 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 P1ECC diagnostic trouble code may include:

The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Faulty PCM
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Rich or lean exhaust

Possible Causes :

The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Fuel with a large percentage of sulfur will clog the DPF quickly
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. 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.

Process Tips

Diagnostic trouble code P1ECC 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 P1ECC.

Fortunately, P1ECC is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1ECC Trouble Code For Specific Cars

P1ECC Nissan Lafesta Cold Start Injector 1 Malfunction
P1ECC Honda Torneo Reverse Mirror Output Circuit Failure
P1ECC Chrysler Pt Touring Excessive Injection Control Pressure
P1ECC Opel Crossland X Digital TRS Failed to Transition States in KOEO / KOER
P1ECC Peugeot 403 EGRA Circuit Malfunction
P1ECC Fbs Census Injector Circuit Open / Shorted - Cylinder #4
P1ECC Ferrari P2 KAM Voltage Too Low