Nissan Sentra manuals

Nissan Sentra Service Manual: General Precautions

engine for an extended period of time without proper exhaust ventilation.Do not operate the
engine for an extended period of time without proper exhaust ventilation.

Keep the work area well ventilated and free of any inflammable materials. Special care should be taken when handling any inflammable or poisonous materials, such as gasoline, refrigerant gas, etc. When working in a pit or other enclosed area, be sure to properly ventilate the area before working with hazardous materials.

Do not smoke while working on the vehicle.



 



 


WARNING:

To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness connectors which are related to the engine control system and TCM (transmission control module) system. The connectors should be disconnected only when working according to the WORK FLOW of TROUBLE DIAGNOSES in EC and TM sections.

Cautions in Removing Battery Terminal and AV Control Unit
CAUTION: Remove battery terminal and AV control unit after a lapse of 30 seconds or more after turning the ignition switch OFF. NOTE: After the ignition switch is turned OFF, the AV control unit ...

Three Way Catalyst
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To prevent this, follow the instructions. Use unleaded gasoline only. Leaded gasol ...

Other materials:

Blower motor
Exploded View Heating and cooling unit assembly Blower motor Front Removal and Installation Remove the glove box assembly. Refer to IP-22, "Removal and Installation". Disconnect the harness connector from the blower motor. Remove the blower motor screws. Remove ...

P0139 HO2S2
DTC Logic DTC DETECTION LOGIC The heated oxygen sensor 2 has a much longer switching time between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen storage capacity of the three way catalyst 1 causes the longer switching time. To judge the malfunctions of heated oxygen sensor 2, ...

Engine control system
Symptom Table SYSTEM — BASIC ENGINE CONTROL SYSTEM 1 - 6: The numbers refer to the order of inspection. (continued on next table) SYSTEM — ENGINE MECHANICAL & OTHER 1 - 6: The numbers refer to the order of inspection. ...

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