Hyundai Sonata 1991 Shop Manual page 267

MPI SYSTEM
Output
Diagnosis
Malfunction code
preference
Check item (Remedy)
order
item
Output signal pattern
No.
Memory
4
Air tem- 13
Retained o Harness and connector
perature
o Air temperature sensor
sensor
:~
31Y065
5 Throttle
14
Retained o Harness and connector
position
o Throttle position sensor
sensor :~ o Idle position switch
31Y066
6
Motor
15
Retained o Harness and connector
position
0
Motor position sensor
sensor :~
31Y067
7
Engine
21
Retained
o Harness and connector
coolant
o Engine coolant temperature
tempera- :~
sensor
ture sensor
31Y068
8
Crank angle
22
Retained o Harness and connector
sensor
(If harness and connector
:~
are normal, replace distribu-
tor assembly.)
31Y069
9
No.1 cylin-
23
Retained o Harness and connector
der top
(If harness and connector
dead center
:~
are normal, replace distribu-
sensor tor assembly.)
31Y070
10
Vehicle-
24 Retained o Harness and connector
speed
o Vehicle-speed
sensor
sensor
:~
(reed switch)
(reed
switch)
31Y071
31-42