P193D Diagnostic Trouble Code

P193D 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 P193D diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
Reduction in engine performance, especially at low RPM levels

Possible Causes :

A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Some aftermarket accessories and performance modifications
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code P193D 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 P193D.

Fortunately, P193D is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P193D Trouble Code For Specific Cars

P193D Saab 9-2
P193D Lincoln Capri Throttle Position Input Out of Range Low
P193D Rover 12 Idle Control System RPM higher Than Expected
P193D Ford Ten Mirror Passenger Vertical Switch Circuit Failure
P193D Chevrolet Fb Driver's Seatbelt Tension Reducer Circuit Short to Ground
P193D Vandenbrink Carver Power Window Master Circuit Short To Ground
P193D Lizard Project Throttle/Pedal Position Sensor/Switch C Circuit High Input