7-27
FUEL INJECTION SYSTEM
4 Installed condition of ignition coil Check that the sensor is installed
securely and that there are no
pinched leads.Check that the ECU
is installed securely and that there
are no pinched leads.
Incorrect installation → Reinstall
or repair.Start the engine and let it
idle for approximately 5
seconds.
After completing the above
operation, check whether a
fault code number is dis-
played.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Refer to item 5.
5 Defective ignition coil. (test the primary coils for
continuity)Defective → Replace.
Refer to "CHECKING THE IGNI-
TION COIL".Start the engine and let it
idle for approximately 5
seconds.
After completing the above
operation, check whether a
fault code number is dis-
played.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Refer to item 6.
6 Malfunction in ECU. Execute the diagnostic mode (di-
agnostic code No. D30).
No spark → Replace the ECU. Fault code No. 33
Symptom Ignition system circuit signal is not received properly.
Fail-safe system Unable to start
Unable to drive
Diagnostic code No. D30
FI diagnostic tool display Actuates the ignition coil for five times every second.
The "WARNING" LED on the FI diagnostic tool comes on each time the ignition coil is ac-
tuated.
Checking methodCheck the spark five times.
• Connect an ignition checker.
Item Item/components and probable cause Check or maintenance job Checking method
7-30
FUEL INJECTION SYSTEM
Fault code No. 44
Symptom Error is detected while reading or writing on EEPROM.
Fail-safe system Able to start engine (depending on circumstances)
Able to drive vehicle (depending on circumstances)
Diagnostic code No. D60
FI diagnostic tool display 00: No fault
01: CO adjustment valve
07: Power Tuner adjustment values 0–8 for fuel injection amount or ignition timing
Checking method —
Item Item/components and probable cause Check or maintenance job Checking method
1 Determine the area of the problem Execute the diagnostic mode (di-
agnostic code No. D60).
00 is displayed: Refer to item 4.
01 is displayed: Refer to item 2.
07 is displayed: Refer to item 3.Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
check the fault code dis-
play.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Repeat item 1.
If the fault code number
is still displayed, refer to
item 3.
2 EEPROM data error (CO adjustment value) Change the CO density and write
the changed setting on EEPROM.Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
check the fault code dis-
play.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Repeat item 1.
If the fault code number
is still displayed, refer to
item 4.
3 EEPROM data error (Power Tuner adjustment
values for fuel injection amount or ignition tim-
ing)Erase the setting map in the diag-
nostic mode (diagnostic code No.
D65).Set the switch on the FI di-
agnostic tool sub-wire har-
ness to "ON", and then
check the fault code dis-
play.
Fault code number is not
displayed → Service is
finished.
Fault code number is dis-
played → Refer to item 1.
4 Malfunction in ECU. Replace the ECU.
