P1329 Diagnostic Trouble Code

P1329 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 P1329 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.
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.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. 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. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code P1329 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 P1329.

Fortunately, P1329 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1329 Trouble Code For Specific Cars

P1329 Fiat Egea Lamp Seat Belt Circuit Open
P1329 Mazda Mazda 3 Ii Turbo/Super Charger Boost Control Solenoid Circuit/Open
P1329 Mazda Carol Transmission Transfer Case Differential Lock-Up Solenoid Open Circuit
P1329 Holden Vt Pressure Control Solenoid "B" Short Circuit
P1329 Singer Sm Invalid /fault data received (Non SCP)
P1329 Mazda Montrose Turbocharger Boost Sensor B Circuit Range/Performance
P1329 Cadillac Brougham Data Mismatch (receive data does not match what was expected)