P1088 Diagnostic Trouble Code

P1088 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 P1088 diagnostic trouble code may include:

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
Faulty or damaged wiring
Hesitation upon acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. 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 P1088 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 P1088.

Fortunately, P1088 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1088 Trouble Code For Specific Cars

P1088 Volkswagen Passat Right Rear Stop lamp Circuit Failure
P1088 Tornado Tempest Motor # 2 Input Circuit Short to Vbat
P1088 Skoda 445 Keyless Entry Circuit Short To Battery
P1088 Rch 25 Fuel Volume Regulator Control Circuit Low
P1088 Amc Gremlin Air Suspension Front Inflator Solenoid Output Circuit Failure
P1088 Lancia Ypsilon Ii Steering Angle Sensor Circuit Open
P1088 Ford Mustang Mirror Driver/Passenger Switch Circuit Short To Battery