P1820 Isuzu Piazza OBD Code

OBD/2 P1820 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.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

P1820 Isuzu Piazza Error Code Repair Process :

If your p1820 transmission transfer case clockwise shift relay coil circuit failure check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P1820 and engine control unit are in charge of monitoring a bunch of different p1820 transmission transfer case clockwise shift relay coil circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Isuzu Piazza 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 ;

Dirty Oil
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Failures of clutch motion/travel sensors.
Continuous oil flow to the VCT piston chamber

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 Piazza OBD Code

P1820 Isuzu Piazza Error Code Repair Process :

Common Causes of Isuzu Piazza P1820 OBD2 Code

P1820 code for other Isuzu cars