Nissan Sentra Service Manual: Mixture ratio self-learning value clear

Nissan Sentra Service Manual / Engine / Engine control system / Basic inspection / Mixture ratio self-learning value clear

Description

This describes how to erase the mixture ratio self-learning value. For the actual procedure, follow the instructions in вЂњDiagnosis ProcedureвЂќ.

Work Procedure

1.START

With CONSULT

Start engine and warm it up to normal operating temperature.
Select вЂњSELF-LEARNING CONTвЂќ in вЂњWORK SUPPORTвЂќ mode of вЂњENGINEвЂќ using CONSULT.
Clear mixture ratio self-learning value by touching вЂњCLEARвЂќ.

With GST

Start engine and warm it up to normal operating temperature.
Turn ignition switch OFF.
Disconnect mass air flow sensor harness connector.
Restart engine and let it idle for at least 5 seconds.
Stop engine and reconnect mass air flow sensor harness connector.
Select Service $03 with GST. Make sure DTC P0102 is detected.
Select Service $04 with GST to erase the DTC P0102.

>> END

Idle air volume learning

Description Idle Air Volume Learning is a function of ECM to learn the idle air volume that keeps each engine idle speed within the specific range. It must be performed under any of the following ...

Fuel pressure

Work Procedure FUEL PRESSURE RELEASE 1.FUEL PRESSURE RELEASE With CONSULT Turn ignition switch ON. Perform вЂњFUEL PRESSURE RELEASEвЂќ in вЂњWORK SUPPORTвЂќ mode of вЂњENGINE� ...

Other materials:

Tcm branch line circuit
Diagnosis procedure 1.Check connector Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). TCM Harness connector F50 Harness co ...

Basic inspection
Diagnosis and repair work flow Work flow Overall sequence Detailed flow 1.Get information for symptom Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the вЂњdiagnostic work sheetвЂќ. ( ...

Cooler pipe and hose
Exploded view High-pressure service port High-pressure pipe Expansion valve Low-pressure service port Low-pressure flexible hose Compressor Refrigerant pressure sensor Condenser and liquid tank assembly High-pressure flexible hose Low-pressure flexible hose Low-pressure f ...