What is the Motorola device on Merc 5.0 MPI

• Sep 25, 2018

• #1

LUnaCY

Active Member

Aug 28, 2018

206

Afton, MN

Boat Info

310 Sundancer 2002

Engines

Mercruiser 5.0 MPI Bravo III

During oil change (new owner) I saw a thin Motorola branded device on my stbd engine. Merc 5.0 MPIs on a 2002 310 DA. Upper port side of the stbd engine near the transom. I forgot to look for the same on the port engine. What it is?

 

• Sep 26, 2018

• #2

paulswagelock

Well-Known Member

Oct 25, 2010

2,194

pa

Boat Info

2018 SDX 270 OB 300 Verado

Engines

Verado 300

If it was on a silver plate bracket about 6”x9” then it was the engine ECM (computer that controls the engine)

 

• Sep 26, 2018

• #3

Larry Sturm

Active Member

GOLD Sponsor

Mar 26, 2017

140

Chiefland, Florida

Boat Info

2003 SeaRay 420 Sundancer
2003 SeaRay 320 Sundancer

Engines

Cummins 6CTA8.3-M3
Mercruiser 350MPI

ECM Engine Control Module. One on each engine.

 

• Sep 28, 2018

• #4

LUnaCY

Active Member

Aug 28, 2018

206

Afton, MN

Boat Info

310 Sundancer 2002

Engines

Mercruiser 5.0 MPI Bravo III

Thanks, was hoping I could call in fluid changes. lol