P193E Diagnostic Trouble Code

P193E 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 P193E diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

Process Tips

Diagnostic trouble code P193E 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 P193E.

Fortunately, P193E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P193E Trouble Code For Specific Cars

P193E Toyota Corona O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P193E Peugeot 403 EGRA Circuit Malfunction
P193E Land Rover Range Rover Steering VAPS II Circuit Loop Short To Ground
P193E Gaz 24 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
P193E Subaru Legacy 4 Left Rear Turn Lamp Circuit Failure
P193E Ferrari 553 Intake Manifold Runner Control Circuit Malfunction
P193E Gobron 18 Park/Neutral Switch Circuit Open