Toyota 3F-E - Engine Hesitates And;Or Poor Acceleration

EFI SYSTEM — Troubleshooting
FI-19
SYMPTOM - ENGINE HESITATES AND/OR POOR ACCELERATION
CHECK BRAKES
OK
CHECK FOR VACUUM LEAKS IN AIR
I
NTAKE LINE
C^]>3
CHECK AIR FILTER ELEMENT
4
OK
CHECK DIAGNOSIS SYSTEM
Check for output of diagnostic code.
(See page FI-21 )
Normal code
CHECK IGNITION SPARK
(See page IG-5)
OK
CHECK IGNITION TIMING
1.
Connect terminals TE1 and
El
of the
check connector.
2. Check ignition timing.
Standard: 7
0
BTDC @a; idle
(
w/ connected TE1 and
El)
OK
CHECK FUEL PRESSURE
(See page FI-45)
Brakes — Drag
BAD
^1
1. Oil filler cap
BAD
2. Oil dipstick
3.
Hose connections
4.
PCV hose(s)
5.
EGR
system —
EGR
valve stays open
Element — Clean or replace
BAD
Ignition timing — Adjust (See page EM-1 1)
NO
k
1. Fuel pump (See page FI-44)
BAD
2. Fuel filter
3. Fuel pressure regulator (See page FI-53)
Diagnostic code(s) (See pages FI-24, 25)
Malfunction
code(s)
1. High-tension cords
BAD
2. Distributor
3.
Ignition coil
4.
Igniter
OK
CHECK INJECTORS
Injection condition
(See page FI-55)
BAD
OK CONTINUED ON PAGE FI-20
i
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