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FI-16
EFI SYSTEM - Troubleshooting
SYMPTOM - ROUGH IDLING AND/OR MISSING
CHECK DIAGNOSIS SYSTEM
Malfunction
Diagnostic code(s) (See page FI-26)
Check for output of diagnostic code.
code(s)
(See page F 1-23)
1
Normal code
CHECK FOR VACUUM LEAKS IN AIR
BAD
1. Oil filler cap
INTAKE LINE
2. Oil dipstick
3. Hose connections
4. PCV hoses
5. EGR system - EG R valve stays open
1
OK
CHECK AIR FILTER ELEMENT
I
BAD
Element - Clean or replace
1
OK
CHECK IDLE SPEED
BAD
ISC system
STD:
7M-GE
700 rpm
(1) Wiring connection
7M-GTE 650 rpm
(2) ISC valve
(3) ECU (test by substitution)
1
OK
CHECK IGNITION TIMING
NO
Adjust ignition timing (See page IG-20)
1. Connect terminals TEl and El of the
check connector.
2. Check ignition timing.
STD: 10° BTDC
@
idle
[wi connect terminals TEl and El]
1
OK
CHECK SPARK PLUGS
NO
1. Spark plugs
Plug gap:
7M-GE
1.1 mm (0.043 in.)
2. Compression pressure
7M-GTE 0.8 mm (0.031 in.)
Minimum: 9.0 kg/cm
2
(128 psi, 883 kPa)
-HINT-
at 250 rpm
Check compression pressure and valve
3. Valve clearance
clearance if necessary.
Standard: IN
0.15 - 0.25 mm
(0.006 - 0.010 in.)
EX 0.20 - 0.30 mm
(0.008 - 0.012 in.)
1
OK
CONTINUED ON PAGE FI-17
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Table of Contents
Troubleshooting
