Toyota Camry Hybrid AHV40 Manual page 216

EG-28
JIGNITION SYSTEM
1. General
A DIS (Direct Ignition System) is used. The DIS improves the ignition timing accuracy, reduces high-voltage
loss, and enhances the overall reliability of the ignition system by eliminating the distributor. The DIS in this
engine is an independent ignition system, which has one ignition coil (with igniter) for each cylinder.
Camshaft
Position
Sensor
Crankshaft
Position
Sensor
Various
Sensor
2. Ignition Coil
The DIS provides 4 ignition coils, one for each cylinder. The spark plug caps, which provide contact to the
spark plugs, are integrated with an ignition coil. Also, an igniter is enclosed to simplify the system.
3. Spark Plug
Iridium-tipped spark plugs are used to realize a 120,000 miles (192,000 km) maintenance-free operation. By
making the center electrode of iridium, the same ignition performance as the platinum-tipped spark plug have
been achieved and further improvement of durability has been realized.
ENGINE - 2AZ-FXE ENGINE
THS ECU
G2
IGT1
IGT2
NE
IGT3
IGT4
IGF1
Iridium Tip
208EG70
Ignition Coil
(with Igniter)
+B
" A
Specifications
DENSO
NGK
Plug Gap
No.1 Cylinder
No.2 Cylinder
No.3 Cylinder
No.4 Cylinder
165EG25
SK20R11
IFR6A11
1.0 - 1.1 mm
(0.0394 - 0.043 in.)