P240F Diagnostic Trouble Code

P240F 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 P240F diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
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.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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.

Process Tips

Diagnostic trouble code P240F 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 P240F.

Fortunately, P240F is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P240F Trouble Code For Specific Cars

P240F De Soto Powermaster Horn Relay Coil Circuit Failure
P240F Ford 49 LF LAMP HIGH BEAM CIRCUIT Failure
P240F Ford Zephyr Motor Relay # 1 Circuit Failure
P240F Peugeot 204 ECU A/D Converter
P240F Mercedes R 350 Accessory Delay Relay Coil Circuit Open
P240F Skoda Yeti Lack Of HO2S22 Switch - Sensor Indicates Rich
P240F Innocenti 1100