P05F5 Diagnostic Trouble Code

P05F5 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 P05F5 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Faulty IMRC actuator relay (if equipped)

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. 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.

Process Tips

Diagnostic trouble code P05F5 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 P05F5.

Fortunately, P05F5 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P05F5 Trouble Code For Specific Cars

P05F5 Vauxhall Vectra Pressure Control Solenoid C Intermittent
P05F5 Alvis Tf21 Air Suspension Front Compressor Relay Circuit Open
P05F5 Chery Qq6 DPFE Sensor Upstream Hose Off Or Plugged
P05F5 Ford B-max Liftgate Disarm Switch Circuit Short to Ground
P05F5 Mazda Drifter Transmission Transfer Case System Concern - Servicing Required
P05F5 Mercedes Sl 400 Air Bag Crash Sensor #2 Feed/Return Circuit Open
P05F5 Mitsubishi Raider Aux Heater Flame Out Fault