Specifications

ON-BOARD DIAGNOSTIC
F107
F
12 INSPECT FUEL LINE FROM FUEL PUMP TO
FUEL DELIVERY PUMP
• Visually inspect fuel line for any leakage.
• Is any fuel leakage found?
Yes Replace suspected fuel line, then go to Step 19.
No Inspect fuel filters for following:
• Restriction or clogging at fuel filter (high-pressure side).
• Foreign materials or stain inside fuel filter (low-pressure
side)
 If restriction or clogging is found at fuel filter (high-
pressure side), replace fuel filter.
 If foreign materials or stain is found inside fuel filter
(low-pressure side), clean of fuel tank and filter.
 If all items above are okay, replace pressure
regulator. Then, go to Step 19.
13 CHECK IGNITION COIL OPERATION
• Perform spark test.
(See F232 Spark Test)
• Do all cylinders show blinking condition?
Yes Go to step 16.
No Go to next step.
14 INSPECT POWER SUPPLY TERMINAL AT
IGNITION COIL CONNECTOR
• Disconnect ignition coil connector.
• Turn ignition key to ON (Engine OFF).
• Measure voltage between ignition coil
connector terminal D (harness-side) and body
ground.
• Is the voltage reading B+?
Yes Go to next step.
No Check for open circuit between ignition coil connector and
ignition switch.
Repair or replace wiring harness, then go to Step 19.
15 INSPECT IGNITION COIL RESISTANCE
• Check ignition coil resistance.
(See G9 IGNITION COIL INSPECTION.)
• Is coil resistance okay?
Yes Go to next step.
No Replace ignition coil, then go to Step 19.
16 INSPECT ENGINE COMPRESSION
• Inspect engine compression.
(See B9 COMPRESSION INSPECTION.)
• Is it okay?
Yes Go to next step.
No Implement engine overhaul for repairs, then go to next
step.
17 INSPECT FUEL INJECTOR OPERATION
• Turn ignition key to OFF.
• Inspect injector.
(See F31 FUEL INJECTOR INSPECTION.)
• Is injector okay?
Yes Go to next step.
No Replace injector, then go to Step 19.
18 INSPECT SEALING OF ENGINE COOLANT
PASSAGE
Warning
•
••
• Removing radiator cap when radiator is
hot is dangerous. Scalding coolant and
steam may shoot out and cause serious
injury.
•
••
• When removing radiator cap, wrap a
thick cloth around and turn it slowly.
• Remove radiator cap.
• Implement procedure to bleed air from engine
coolant, then run engine at idle.
• Is there any small bubble, which makes engine
coolant white at filling opening?
Note
• Large bubbles are normal since they are
remaining air coming out from engine
coolant passage.
Yes Air gets in from poor sealing to head gasket or other areas
between combustion chamber and engine coolant
passage.
Repair or replace faulty parts, then go to next step.
No Go to next step.
STEP INSPECTION ACTION