(2) Check that there is voltage between ECM terminal + B (+ B1 ) and
body ground. (IG SW ON)
(1) There is no voltage between ECM terminals + B (+ B1) and E1.
(IG SW ON) .
(3) Check wiring between ECM terminal El and
body ground.
Check wiring between EFI main relay
and ECM terminal + B (+B1).
Check wiring between E F I main relay
and battery.
Check fuse, fusible link and ignition
switch.
Check EF 1 main relay.
• +B (+B1) –E1
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Try another ECM.
BAD
Replace.
BAD
SAD
BAD
BAD
–ENGINE MFI SYSTEM
EG2–187
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