C3641 Lancia Beta OBD Code

OBD/2 C3641 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.

C3641 Lancia Beta Error Code Repair Process :

For wheel speed sensor rf tone ring tooth missing fault 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. C3641 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 wheel speed sensor rf tone ring tooth missing fault with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Lancia Beta C3641 OBD2 Code

A common cause of code C3641 is the failure of Wheel Speed Sensor RF Tone Ring Tooth Missing Fault, but there are several other possible causes as well, such as ;

Dirty Oil
1Camshaft Position Sensor circuit poor electrical connection
Incorrect fuel filler cap used
Exhaust gas leaks

C3641 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

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

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C3641 Lancia Beta OBD Code

C3641 Lancia Beta Error Code Repair Process :

Common Causes of Lancia Beta C3641 OBD2 Code

C3641 code for other Lancia cars