HAIMA 7 - Page 249

General Precautions of EFI System Maintenance
F-113
S/N
Operating Steps
Test Result
Follow
-
up Step
6
Inspect whether or not carbon accumulation exists on the
throttle body.
Yes
Related parts
and components
to be cleaned
No
Next Step
7
Inspect whether or not the air flow meter, the throttle opening
sensor, and their lines are under normal conditions.
Yes
Next Step
No
Line to be
inspected and
repaired or
sensor to be
replaced
8
Demount the fuel injector, and use special cleaning analyzer
for fuel injector to examine whether or not leakage or
blockage exists.
Yes
Fuel injector in
malfunction to
be replaced
No
Next Step
9
Inspect the fuel status, and observe whether or not
malfunction symptom is caused just after fuel has been filled.
Yes
Fuel to be
replaced
No
Next Step
10
Inspect whether or not the ignition sequence and the ignition
timing of engine is compliant with specifications.
Yes
Next Step
No
Ignition timing
to be inspected
and repaired
11
Inspect whether or not the exhaust pipe is able to exhaust air
smoothly.
Yes
Next Step
No
Exhaust pipe to
be repaired or
replaced
12
Link up the adapter of the electronic injection system, turn on
the ignition switch, and examine whether or not the power
supply for Pins 12#, 63#, 44# and 45# is normal. Inspect
whether or not the grounding of Pins 79#, 17#, 35#, 36#, 51#,
53#, 80# and 61# is normal.
Yes Diagnostic Help
No
Corresponding
lines to be
inspected and
repaired