P064B Diagnostic Trouble Code

P064B 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 P064B diagnostic trouble code may include:

Cherry red hot catalytic converter
Poor acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem. 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 P064B 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 P064B.

Fortunately, P064B is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P064B Trouble Code For Specific Cars

P064B Renault Juva Glow Plug Monitor Fault (Bank #2)
P064B Railton Straight 8 Fuel Temperature Sensor A Circuit low Input
P064B Chevrolet Deville Driver's / Passenger's Door Ajar Output Circuit Short to Battery
P064B Peugeot 4007 EGR Metering Orifice Restricted
P064B Trident Clipper Passenger Side Crash Sensor Internal Fault
P064B Ford Ba Falcon License Lamp Circuit Failure
P064B Nissan Lafesta Cold Start Injector 1 Malfunction