P236F Diagnostic Trouble Code

P236F 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 P236F diagnostic trouble code may include:

Poor fuel economy
Possible spark knock (detonation / pre-ignition)
Misfire
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.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code P236F 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 P236F.

Fortunately, P236F is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P236F Trouble Code For Specific Cars

P236F Opel Caravan Decklid Ajar Rear Door Circuit Short To Ground
P236F Mitsubishi Celeste Audio Rear Control Unit is Not Responding
P236F Kissel 6 Servo Motor Potentiometer Airintake Left Circuit Short To Ground
P236F Proton Arena Fuel Sender Circuit Failure
P236F Citroen Ds3 Fuel Level Sensor B Circuit Low
P236F Alpine A108 Air Bag Memory Clear Circuit Short To Ground
P236F Austin Marina Autolamp Sensor Input Circuit Short To Ground