P10B8 Diagnostic Trouble Code

P10B8 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 P10B8 diagnostic trouble code may include:

Diminished fuel efficiency
Fuel pressure too high
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 :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Faulty IMRC actuator/sensor

Repair Processes :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition. 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 P10B8 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 P10B8.

Fortunately, P10B8 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P10B8 Trouble Code For Specific Cars

P10B8 Adler 1.7 ABS Inlet Valve Coil RF Circuit Open
P10B8 Paterson Model 47 Driver Side, Side mount Airbag Low capacitance on Squib
P10B8 Daihatsu Consorte Gear Shift Module Communication Circuit
P10B8 Peugeot Traveller Engine Oil Temperature Circuit Malfunction
P10B8 Mitsubishi Model A Aux A/C Control Switch Reference Circuit Short to Ground
P10B8 Darracq 3-litre Heated Catalyst Efficiency Below Threshold (Bank 2)
P10B8 Land Rover Series I Subsidiary Throttle Valve Solenoid Circuit Malfunction