FI/EFI System — Symptom — Engine Often Stalls, page 14

FI-14                                    EFI SYSTEM — Troubleshooting

SYMPTOM — ENGINE OFTEN STALLS

CHECK DIAGNOSIS SYSTEM
Check for output of diagnostic code
(See page FI-23)

Normal code

CHECK FOR VACUUM LEAKS IN
AIR INTAKE LINE

OK

CHECK FUEL SUPPLY TO INJECTOR
1. Fuel in tank
2. Fuel pressure in fuel line
   (1) Connect terminals Fp and +B of
       the check connector.
   (2) Measure fuel pressure in fuel
       return hose. (See page FI-71)
3. Check circuit opening relay
   (See page FI-110)

OK

CHECK AIR FILTER ELEMENT

OK

CHECK IDLE SPEED
STD:  7M-GE   700 rpm
      7M-GTE  650 rpm

OK

CHECK IGNITION TIMING
1. Connect terminals TE1 and E1 of
   the check connector.
2. Check ignition timing
   STD:  10° BTDC @ Idle
       (W/ Connect terminals TE1 and E1)

OK

CHECK SPARK PLUGS
Plug gap:  7M-GE   1.1 mm (0.043 in.)
          7M-GTE  0.8 mm (0.031 in.)

— HINT —
Check compression pressure and valve
clearance if necessary.

OK  CONTINUED ON PAGE FI-15

Malfunction
code(s)

BAD

BAD

BAD

BAD

NO

BAD

Diagnostic code(s) (See page FI-26)

1. Oil filler cap
2. Oil dipstick
3. Hose connections
4. PCV hose

1. Fuel line — leakage — deformation
2. Fuse
3. Fuel pump (See page FI-70)
4. Fuel filter
5. Fuel pressure regulator (See page FI-81)
6. Circuit opening relay (See page FI-110)

Element — Clean or replace

ISC system
(1) Wiring connection
(2) ISC valve
(3) ECU (test by substitution)

Adjust ignition timing (See page IG-20)

1. Spark plugs
2. Compression pressure
   Minimum:  12 kg/cm²
            (128 psi, 883 kPa)
            at 250 rpm
3. Valve clearance
   Standard:  IN  0.15 — 0.25 mm
                 (0.006 — 0.010 in.)
             EX  0.20 — 0.30 mm
                 (0.008 — 0.012 in.)