P66B3 Citroen Berlingo Iii OBD Code

OBD/2 P66B3 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

P66B3 Citroen Berlingo Iii Error Code Repair Process :

For check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. P66B3 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Citroen Berlingo Iii P66B3 OBD2 Code

A common cause of code P66B3 is the failure of , but there are several other possible causes as well, such as ;

Dirty Oil
Faulty Crankshaft Position Sensor (POS)
Faulty variable valve timing (VVT)
Missing or loose fuel cap

P66B3 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P66B3 Citroen Berlingo Iii OBD Code

P66B3 Citroen Berlingo Iii Error Code Repair Process :

Common Causes of Citroen Berlingo Iii P66B3 OBD2 Code

P66B3 code for other Citroen cars