shift interrupter wont work!! help!!!

cdiamond

Petty Officer 3rd Class
Joined
Aug 20, 2008
Messages
94
Re: shift interrupter wont work!! help!!!

if you have provided a 'good' ground to the ignition sensor
and the engine still runs ....

then the sensor is faulty --- period !

that is all the shift switch does, in order to allow disengagement of forward or reverse gear

i have to say, in 30 years i've never seen this particular situation

good luck and safe boating
 

jonoman69

Petty Officer 3rd Class
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May 5, 2008
Messages
81
Re: shift interrupter wont work!! help!!!

Which sensor do you mean?? The ignition control module??
 

Don S

Honorary Moderator Emeritus
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Aug 31, 2004
Messages
62,321
Re: shift interrupter wont work!! help!!!

It has to be the ignition module, not the sensor in the distributor. If you wasn't getting a signal to the ignition module from the sensor in the distributor, it wouldn't run at all.
 

jonoman69

Petty Officer 3rd Class
Joined
May 5, 2008
Messages
81
Re: shift interrupter wont work!! help!!!

Well boys, thanks for all the help. I found the issue. Buddy who sold me the boat this year never informed my that his ingnition control module went and the marine shop gave him a bravo module to get buy. And apparently the bravo module doesnt have that feature. Thanks again
 

jonoman69

Petty Officer 3rd Class
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May 5, 2008
Messages
81
Re: shift interrupter wont work!! help!!!

my boat has the alpha, thats why its shifting hard
 

Don S

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Re: shift interrupter wont work!! help!!!

That'll do it :facepalm:
 

cdiamond

Petty Officer 3rd Class
Joined
Aug 20, 2008
Messages
94
Re: shift interrupter wont work!! help!!!

don

its the same dizzy sensor in a alpha or bravo

are you saying - if you ground the sensor in a bravo - the engine wont quit ? due to the ignition amplifier
 

Don S

Honorary Moderator Emeritus
Joined
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Messages
62,321
Re: shift interrupter wont work!! help!!!

its the same dizzy sensor in a alpha or bravo
It's also the same one for TB4 and 5, V6 and V8.
are you saying - if you ground the sensor in a bravo - the engine wont quit ? due to the ignition amplifier
Obviously not. He grounded the white/green wire and it didn't die.

Since I personally haven't tried using a Bravo module on an Alpha setup, (we were Merc dealers and kind of made it a habit of using the right parts), and I really don't know what is going on inside of those modules, then who knows what happens when wiring is mismatched.

It's kind of a problem with forums. We lack the hand on, and eye on that normally tells us of problems like this. When we don't get all the information, the answers tend to not mean much either.
 
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