Nissan Sentra Service Manual: Spark plug
Exploded View
- Ignition coil
- Spark plug
- Rocker cover
Removal and Installation
REMOVAL
- Remove engine cover. Refer to EM-24, "Exploded View".
- Remove ignition coil. Refer to EM-46, "Exploded View".
- Remove spark plug using suitable tool.
(a) : 14 mm (0.55 in)
CAUTION:
Do not drop or shock spark plug.
INSTALLATION
Installation is in the reverse order of removal.
*: Always check with the Parts Department for the latest parts information.
CAUTION:
Always tighten the spark plug to specified torque to align the orientation of electrodes. The ground electrode of a genuine spark plug is positioned in the area of maximum ignitability by tightening to the specified torque. When replacing spark plugs, use genuine spark plugs of which the ground electrode is adjusted.
NOTE:
The ground electrode of the spark plug is positioned in the area of maximum ignitability to improve combustion efficiency in the cylinder, reduce CO2 (carbon dioxide) emission and improve fuel economy.
- Ground electrode of spark plug
- Top view
- Air-fuel mixture flow
- Poor ignitability region
Inspection
INSPECTION AFTER REMOVAL
Use the standard type spark plug for normal condition.
Spark plug (Standard type) : Refer to EM-118, "Spark Plug".
CAUTION:
- Do not drop or shock spark plug.
- Do not use a wire brush for cleaning.
- If plug tip is covered with carbon, spark plug cleaner may be used.
Cleaner air pressure : Less than 588 kPa (6 kg/cm2, 85 psi)
Cleaning time : Less than 20 seconds
- Spark plug gap adjustment is not required between replacement intervals.
- Measure spark plug gap. when it exceeds the limit, replace
spark plug even if it is with in the specified replacement mileage.
Refer to EM-118, "Spark Plug".
Drive belt
Exploded View
Alternator
Drive belt auto-tensioner
Crankshaft pulley
A/C compressor
Water pump
Drive belt
Possible use range
New drive belt range
Indicator
Removal and ...
Other materials:
P0031, P0032 A/F sensor 1 Heater
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0031
A/F SEN 1 HTR (B1)
(HO2S heater control circuit
low bank 1 sensor 1)
The current amperage in the A/F sensor 1 heater
circui ...
Ambient sensor signal circuit
Description
It detects outside air temperature and converts it into a resistance value
which is then input into the combination
meter.
Diagnosis Procedure
Regarding wiring diagram information, refer to mwi-28, "wiring diagram".
1.Check ambient sensor signal circuit
Turn igniti ...
Symptom diagnosis
Audio system
Symptom table
Related to audio
Related to hands-free phone
Before performing diagnosis, confirm that the cellular phone being used
by the customer is compatible with
the vehicle.
It is possible that a malfunction is occurring due to a version change
of the p ...
