Hyundai Sonata 1991 Shop Manual page 237

GENERAL
- - - - J
Element-Clean or replace
Wrong
1L _
o High tension cables
o Distributor
o Ignition coil, power transister
o Fuel pump
[Refer to page 31-33]
o Fuel filter
o Fuel pressure regulator
Ignition timing-Adjust
[Refer to page 27-36]
o Oil filler cap
o Oil dipstic
o Hose connections
o PCV hose
o EGR system
Trouble codes
o Using voltmeter
[Refer to page 31-41]
o Using MUT
[Refer to page 31-44]
o Clutch-slip
o Brake-drag
- - - - - - 7
Wrong
- - - - - - 7
Malfunction
codes
- - - - - - 7
Wrong
- - - - - - 7
Wrong
- - - - - - 7
Wrong
----,
Wrong
L -_ _
-----.:=---- _
Check clutch or brakes
OK
\11
Check vacuum leaks in intake air -
line
OK
Check air cleaner element
~ OK
Check self-diagnosis I -
[Refer to page 31-39]
Normal codes
I
Check for ignition spark
-
o Unplug injector connectors
o Check for a strong spark by holding
spark
plug
wire
B-10 mm
(0.31-0.39 in.) away from engine
block during cranking engine
II/OK
Check ignition timing
-
Basic: 5°
±
2°BTDC at curb idle
Actual : 10 0 BTDC
1
0K
Check fuel pressure
-
[Refer to page 31-34]
~OK
Engine hesitates or accelerates poorly
PROBLEM
To be continued
31-12