P3066 Diagnostic Trouble Code

P3066 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 P3066 diagnostic trouble code may include:

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

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.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Now, clear the codes and test-drive the vehicle to see if the code is reset.

Process Tips

Diagnostic trouble code P3066 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 P3066.

Fortunately, P3066 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P3066 Trouble Code For Specific Cars

P3066 Treser Roadster Passenger Side Crash Sensor Communication Fault (Non SCP)
P3066 Peugeot Double Emergency & Road Side Assistance Switch Circuit Short to Ground
P3066 Chevrolet Corvette C6 Driver Window Down Current Sense Low Circuit Failure
P3066 Citroen Jumper Fuel Pressure Regulator 1 Performance
P3066 Locomobile 48 Timing Reference High Resolution Signal A No Pulses
P3066 Singer Gazelle Internal Vref Malfunction
P3066 Sbarro Stash Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector)