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Fl-10
EFI SYSTEM - Troubleshooting
Digital
Type
r
a-
11
Analog
Type
"
7'
L
'\
D{~+®
~
1
~-®
FI0889
4.
Use a volt/ ohmmeter with high impedance (1 0 kn/V
minimum) for troubleshooting of the electrical circuit.
(See page Fl-27)
TROUBLESHOOTING PROCEDURES
SYMPTOM- DIFFICULT TO START OR NO START
(ENGINE WILL NOT CRANK OR CRANKS SLOWLY)
CHECK ELECTRIC SOURCE
1. Battery
BAD
(1) Connection
(2) Gravity - Drive belt - charging system
(3) Voltage
2. Fusible links
i
OK
CHECK STARTING SYSTEM
1. Ignition switch
BAD
2. Starter
3. Neutral start switch
4.Wiring I Connection
SYMPTOM- DIFFICULT TO START OR NO START (CRANKS OK)
CHECK DIAGNOSIS SYSTEM
Diagnostic code(s)
Check for output of diagnostic code.
Malfunction
(See pages Fl-24, 25)
(See page Fl-21)
code(s)
!
Normal code
DOES ENGINE START WITH
ISC system
ACCELERATOR PEDAL
OK
(1) ISC valve
DEPRESSED?
(2) Wiring connection
l
NO
CHECK FOR VACUUM LEAKS IN
1. Oil filler cap
AIR INTAKE LINE
BAD
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system- EGR valve stays open
!
OK
CHECK IGNITION SPARK
1. High-tension cords
(See page IG-5)
BAD
2. Distributor
3. Ignition coil
· 4. Igniter
t
OK CONTINUED ON PAGE Fl-11
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