Pcm ??? for you efi guys
11-02-2006 | 06:20 PM
#1
Thread Starter
Pirate of the Chesapeake
Joined: Aug 2006
Posts: 4,330
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From: North Point Creek, Md.
Pcm ??? for you efi guys
This might sound like a stupid question, but does a boat with twin efi motors run 2 pcm's or 1 for both. I would figure it is like cars 1 for eacj, but wasn't sure, can somone clear this up for me.. Thanks JOHN
11-02-2006 | 08:05 PM
#3
Thread Starter
Pirate of the Chesapeake
Joined: Aug 2006
Posts: 4,330
Likes: 0
From: North Point Creek, Md.
Re: Pcm ??? for you efi guys
Originally Posted by bowtie
Each engine has to have it's own ecm, can't remember the last time I saw a car with twin efi engines.
Ya know what I meant
11-02-2006 | 08:34 PM
#4
Charter Member
Joined: Jan 2001
Posts: 7,663
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From: Edgerock Baby!!
Re: Pcm ??? for you efi guys
In some boats they slave one ECU to the other so you can read both from a single hookup. Not sure what the advantage is but it has provisions for it. I found out the hard way that you have to run completely separate electrical feeds to them or the ECU will freak 
Never run the batteries on ALL
Never run the batteries on ALL
