EFI SY STEM — Troubleshooting with Volt/Ohmmeter
FI-35
No.
Terminals
Trouble
Condition
STD Voltage
3
VC-E22
No voltage
Ignition
SW ON
—
4 - 6 V
VS - E22
Measuring plate fully closed
4 - 5 V
VS - E22
Measuring plate fully open
0.02 - 0.08 V
VS-E22
Idling
—
2 - 4 V
VS - E22
3,000 rpm
—
0.3 - 1.0 V
ECU
FI1269I
Air Flow Meter
Ohmmeter
0
VC
E2
VS
O
°--------
(See page FI-62)
FI1283
I
There is no voltage between ECU terminals VC or VS and
^E22. (IG SW ON)
O
Check that there is voltage between ECU te B
( + B1) and body ground. (IG SW ON)
OK
NO
Refer to No. 1.
(See page FI-30)
Check wiring between ECU terminal
El
and body
ground.
OK
BAD
O
Check air flow meter.
Repair or replace.
(See page Fl-62)
BAD
OK
Replace air flow
Check wiring between ECU and air
meter.
flow meter.
OK
BAD
Try another ECU.
I
Repair or replace.
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