Mitsubishi 3000GT Service Manual page 302

On-Vehicle Inspection of MFI
FUEL INJECTION - Components
MULTIPORT FUEL INJECTION (MFI) RELAY AND FUEL
PUMP RELAY INSPECTION
(1) Remove the relay.
(2) Check for continuity between the relay terminals.
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(3) Use the jumper leads to connect relay terminal 4 to the
battery (+) terminal and terminal 2 to the battery (-) termi-
nal.
(4) Check the continuity between relay terminals 1 - 3 while
connecting and disconnecting the jumper lead at the bat-
tery (-) terminal.
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(5) yeth;re is a defect, replace the MFI relay or fuel pump
Inspection terminals /
Continuity across terminals
Jumper lead
Connected
Disconnected
Continuity
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l - 3
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Continuity (0 Sz)
No continuity (- Q)