P176E Diagnostic Trouble Code

P176E 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 P176E 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
Diminished fuel efficiency

Possible Causes :

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.
Defective ECU strategies or components will prevent proper regeneration
An air leak forward of the DPF will change the sensor readings resulting in the code

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. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code P176E 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 P176E.

Fortunately, P176E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P176E Trouble Code For Specific Cars

P176E Nissan Lucino Column Tilt Feedback Potentiometer Circuit Short to Battery
P176E Seat Ibiza Injector Control Pressure Above Expected Level
P176E Graham Streak Passenger Power Window Motor Circuit Open
P176E Chevrolet Camaro Driver Power Window Motor Circuit Failure
P176E Ferrari F310 Intermediate Shaft Speed Sensor Circuit No signal
P176E Gaz 29 O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
P176E Alfa Romeo Rz Air Bag Crash Sensor #2 Feed/Return Circuit Failure