C3838 Dodge Viper OBD Code

OBD/2 C3838 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 the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

C3838 Dodge Viper Error Code Repair Process :

The rule of C3838 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of adaptive mode switch circuit failure. Likewise, overriding the OBD C3838 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Dodge Viper C3838 OBD2 Code

A common cause of code C3838 is the failure of Adaptive Mode Switch Circuit Failure, but there are several other possible causes as well, such as ;

Dirty Oil
Faulty TCM or TCM programming
Fuel pressure
Oil flow restriction in the oil passages or the variable camshaft timing (VCT) valve body

C3838 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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C3838 Dodge Viper OBD Code

C3838 Dodge Viper Error Code Repair Process :

Common Causes of Dodge Viper C3838 OBD2 Code

C3838 code for other Dodge cars