Toyota COMPUTER-CONTROLLED SYSTEM Training Manual page 102

ESA - Functions of Engine EC U
The relationship between the major controls the REFERENC E
make up ignition timing control and the major The signals used for certain controls may
signals from each sensor is shown in the differ depending on the engine .
following table .
LL
W
W
0
J
x
U
SIGNALS o d J
P:
(D
0
~
U) LU
~
Se
O O
~
>
ZD
(L
LL
Cn
¢
(n
U)
_j
O
~V
0
Z
~
LL
Q"'
Z
ga
z
_J
z
~
z
~ a OW
(D H!
~ O Q ~
~
Za Z
0
j
~
u. O
IGNITION TIMING CONTROL
Y O
Q
F
~
m a ~>
_J
>
C7
Z
=
CL
a
Z
> O
V)
O
~
0
Sta
rt
ing ignition control
0 0
Basic ignition advance angle
0 0
0
0
0
~
C
Warm-up correction
0
0
0
~
Over-temperature correction
0
M
C
Stable idling correction
0 0 0
0
Y
E
EGR correction
0 0
0 0
0
t
m _
~ >
Air-fuel ratio feedback correction
0
0
0
m ° Knocking correction
0
r
o
o
U
c~
Torque control correction*
0
0 0 0
Torque control correction also uses the vehicle speed (SP2) signal . This signal is used to control the ECT . For further
details, see Step 3, vol . 4 (ECT) .
90