C1831 Saab 90 OBD Code

OBD/2 C1831 error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

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.

C1831 Saab 90 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C1831 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If c1831 air suspension compressor relay circuit open so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the c1831 air suspension compressor relay circuit open.

Common Causes of Saab 90 C1831 OBD2 Code

A common cause of code C1831 is the failure of C1831 Air Suspension Compressor Relay Circuit Open, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty Air Flow Meter
Foreign matter caught in fuel filler cap
Missing or loose fuel cap

C1831 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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C1831 Saab 90 OBD Code

C1831 Saab 90 Error Code Repair Process :

Common Causes of Saab 90 C1831 OBD2 Code

C1831 code for other Saab cars