P1DAC Diagnostic Trouble Code

P1DAC 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 P1DAC diagnostic trouble code may include:

Carbon Buildup on O2 Sensor
Malfunction Indicator Lamp (MIL) illuminated
Hesitation upon acceleration
Diminished fuel efficiency

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
Some aftermarket accessories and performance modifications

Repair Processes :

Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. 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.

Process Tips

Diagnostic trouble code P1DAC 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 P1DAC.

Fortunately, P1DAC is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1DAC Trouble Code For Specific Cars

P1DAC Alfa 40-60 ABS Outlet Valve Coil RF Circuit Failure
P1DAC Abarth Otr 1000 A/C Post Heater Sensor Circuit Failure
P1DAC Fiat 2300 Lamp ABS Warning Output Circuit Failure
P1DAC Austin Maestro Autolamp Sensor Input Circuit Short To Battery
P1DAC Hyundai I30 SCP (J1850) Invalid or Missing Data for Cellular Phone / Paging System
P1DAC Fiat Grande Punto Lamp Turn Signal Front Output Circuit Failure
P1DAC Marmon 34 Transmission 4-Wheel Drive Low Indicator Open Circuit