Mercury MerCruiser Service Manual page 396

MPI ECT Fuel System
i. Remove the three cable ties holding the harness to the PCM relay bracket.
j. Remove the fuses, 10‑pin diagnostics connector, and the J1939 diagnostic connection from the PCM relay bracket.
k. Remove the circuit breaker.
b
c
l. Remove the depth/RS‑485 and the boat harness (tanks) connectors.
m. Remove the nut on the 14‑pin data harness connector and remove the connector.
NOTE: The 14‑pin data harness connector may have to be rotated slightly after removing the retaining nut to remove
it from the mounting hole. This is due to the flat in the mounting hole.
n. Disconnect the manifold absolute pressure (MAP) sensor and lift it off the PCM relay bracket.
5. Loosen the clamp and remove the flame arrestor.
Page 5A-26
a
c
b
d
a
b
a
58395
© 2016 Mercury Marine
a - Fuses
b - 10‑pin diagnostics
c - J1939 diagnostic connection
d - Circuit breaker
56518
a - 14‑pin data harness
b - Depth/RS‑485
c - Boat harness (tanks)
59422
a - Flame arrestor
b - Clamp securing the flame arrestor
90-8M0099748 eng DECEMBER 2015