Page text (OCR transcript)
FI-16
EFI SYSTEM — Troubleshooting
SYMPTOM — ROUGH IDLING AND/OR MISSING
CHECK DIAGNOSIS SYSTEM
Check for output of diagnostic code.
(See page FI-23)
Malfunction code(s)
Diagnostic code(s) (See page FI-26)
Normal code
CHECK FOR VACUUM LEAKS IN AIR INTAKE LINE
BAD
1. Oil filler cap
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system — EGR valve stays open
OK
CHECK AIR FILTER ELEMENT
BAD
Element — Clean or replace
OK
CHECK IDLE SPEED
STD: 7M-GE 700 rpm
7M-GTE 650 rpm
BAD
ISC system
(1) Wiring connection
(2) ISC valve
(3) ECU (test by substitution)
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]
NO
Adjust ignition timing (See page IG-20)
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.
NO
1. Spark plugs
2. Compression pressure
Minimum: 9.0 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 0.2e — 0.30 mm
(0.008 — 0.012 in.)
OK
CONTINUED ON PAGE FI-17
