P1676 Diagnostic Trouble Code

P1676 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 P1676 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Reduction in engine performance, especially at low RPM levels

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
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. 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. 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 P1676 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 P1676.

Fortunately, P1676 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1676 Trouble Code For Specific Cars

P1676 Seat Inca Injector Control Pressure Not Detected During Crank
P1676 Moretti 1100 Battery Saver Relay Coil Circuit Open
P1676 Trabant P50 Passenger Sid, Side mount Airbag Circuit Short to Vbatt
P1676 Chrysler Newport Evaporative Emission Control System Vent Control Circuit Shorted
P1676 Holden Caprice Pedal Position Rearward Switch Circuit Short to Battery
P1676 Mercedes E 230 ABS Power Relay Coil Short Circuit To Battery
P1676 Chevrolet Avalanche 2 Driver Door Handle Circuit Short To Battery