(1) There is no voltage between ECM terminals VC and E2 (E21).
(I G SW ON)
(2) Check that there is voltage between ECM terminal + B (+ 131) and
body ground. (IG SW ON)
Check wiring between ECM and volume
air flow meter.
Replace or repair volume
air flow meter.
Intake air temperature 20°C (68°F
(3) Check volume air flow meter.
Measuring plate fully dosed
Measuring plate fully open
Replace or repair wiring.
Try another ECM.
• VC – E2 (E21)
Refer to No. 1.
Ignition
SW ON
STD Voltage
No voltage
Terminals
IG SW ON
Condition
Trouble
Idling
BAD
BAD
No.
–ENGINE MFI SYSTEM
EG2–190
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