Mazda MX-5 1990 Workshop Manual page 302

G
IGNITION SYSTEM
TROUBLESHOOTING
Misfire
1. Turn ignition switch ON .
2. Connect diagnosis connector terminals (TEN) and
(GNO) with a jumper wire
3. Check if MIL illuminates
Check 1
!
NO
I
YES
1
Refer to Section F (Refer to page F-80)
Check if resistance of secondary windings is OK
II
NO
f
Check ignition coil (Refer to page G-21)
~(R~e~fe~r~to~pa~g~e~G~-~2~1~) __ - , ________________ ~
Check 2
l
YES
J
J
I
Check if resistance of high-tension lead is OK
II
YES
~~-C':::... -~h-e:::C;k~s~p;a-r..:..:.k~p;lu;g~(~R~e-:-f..:.e~r -t.:..:.o~p~a~g~e~G~-~2~O~)_-_
-_ -_ -_ -_-_ -_ -_
-~I
~(R~e~fe~r~to~p~a~g~e~G~-~2=2~) __ - . ________________ ~
!
NO
r
Check high-tesion lead (Refer to page G-22)
I
05UOGX-037
Check 1
Check 2
G-18
--