B1373 Nissan Gazelle OBD Code

OBD/2 B1373 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.

B1373 Nissan Gazelle Error Code Repair Process :

If your vehicle failed a B1373 test and the B1373 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses b1373 illuminated entry relay short to battery a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look b1373 illuminated entry relay short to battery: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Nissan Gazelle B1373 OBD2 Code

A common cause of code B1373 is the failure of B1373 Illuminated Entry Relay Short To Battery, but there are several other possible causes as well, such as ;

Dirty Oil
1Camshaft Position Sensor circuit poor electrical connection
Fuel injectors may be faulty
Foreign matter caught in fuel filler cap

B1373 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

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

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B1373 Nissan Gazelle OBD Code

B1373 Nissan Gazelle Error Code Repair Process :

Common Causes of Nissan Gazelle B1373 OBD2 Code

B1373 code for other Nissan cars