P1820 Isuzu Trooper OBD Code

OBD/2 P1820 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.

P1820 Isuzu Trooper Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P1820 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 p1820 transmission transfer case clockwise shift relay coil circuit failure 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 p1820 transmission transfer case clockwise shift relay coil circuit failure.

Common Causes of Isuzu Trooper P1820 OBD2 Code

A common cause of code P1820 is the failure of P1820 Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Faulty front heated oxygen sensor
Damaged camshaft position (CMP) sensor

P1820 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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P1820 Isuzu Trooper OBD Code

P1820 Isuzu Trooper Error Code Repair Process :

Common Causes of Isuzu Trooper P1820 OBD2 Code

P1820 code for other Isuzu cars