Toyota RM744U Automobile Parts User Manual


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FI6588
FI6538
A00064
Injector Signal Waveform
10V/
Division
GND
100 m sec./Division (Idling)
GND
Injection duration
1 m sec./Division (Idling)
10V/
Division
(Magnification)
–DIAGNOSTICS ENGINE
DI–69
2000 CELICA (RM744U)
HINT:
The correct waveforms are shown.
OK Go to step 5.
NG
4 Check resistance of injector of misfiring cylinder (See page SF–18).
NG Replace injector.
OK
Check for open and short in harness and con-
nector between injector and ECM (See page
IN–30).
5 Check fuel pressure (See page SF–6).
NG Check and repair fuel pump, pressure regulator,
fuel pipe line and filter.
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