Nissan Sentra Service Manual: Symptom diagnosis
Noise, vibration and harshness (NVH) troubleshooting
NVH troubleshooting chart
- Locate the area where noise occurs.
- Confirm the type of noise.
- Specify the operating condition of engine.
- Check specified noise source.
If necessary, repair or replace these parts.
- Closely related
- Related
- Sometimes related —: Not related
Other materials:
Controls
Fan control dial
The fan control dial turns the fan on and off, and
controls fan speed.
Air flow control buttons
The air flow control buttons allow you to select
the air flow outlets.
MAX — Air flows from center and side
A/Cvents with maximum cooling.
— Air flows from center and side
v ...
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
conditions:
Each time electric throttle control actuator or ECM is replaced.
Idle speed or i ...
P0172 Fuel injection system function
DTC Logic
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture
ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from the
A/F sensors 1. The ECM calculates
the necessary compensation to correct th ...
