P088E Diagnostic Trouble Code

P088E 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 P088E diagnostic trouble code may include:

Fuel pressure too low
Rich or lean exhaust
Diminished fuel efficiency
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)
Faulty IMRC actuator/sensor

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. 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.

Process Tips

Diagnostic trouble code P088E 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 P088E.

Fortunately, P088E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P088E Trouble Code For Specific Cars

P088E Siata Coupe Intake Air Temperature Sensor 2 Circuit Range/Performance
P088E Awz-zwickau P Aux Heater Overheat Sensor Circuit Open
P088E Frazer Six NVM RF HR Failure
P088E Borgward 2.3 Litre Control Module VSS Output "A" Malfunction
P088E Maserati Mc12 Transmission Fluid Pressure Sensor/Switch F Circuit High
P088E Citroen Big Fifteen Front Doppler Sensor Circuit Failure
P088E Temperino Touring Misfire Monitor AICE Chip Fault