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  #11  
Old 06-18-2013, 05:56 PM
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Originally Posted by doemill1 View Post
This engine doesn't have a distributor
And that's what happens when I don't get a good night's sleep- I type things I don't mean to. I meant alternator.
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  #12  
Old 06-18-2013, 05:56 PM
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Originally Posted by doemill1 View Post
I'm not sure ,not having any manual on this, is there a separate ignition module on this engine. I noticed a small module on the back of ECM?
Can you post a photo of this module? The ECM should be on a metal bracket, all by its lonesome, although yours may have the knock sensor module piggy-backed on it.
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  #13  
Old 06-18-2013, 06:02 PM
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Check all the battery lines.. you may need or replace them all since they were most likely over heated. I am sure the alternator rectifier is fried and maybe even alternator - IMO.

Did you reconnect battery correctly and see if everything is ok?
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  #14  
Old 06-18-2013, 06:23 PM
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My best friend did this to his Malibu. If I recall correctly, he fried the ECM. $1,200 I believe.
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  #15  
Old 06-18-2013, 06:43 PM
doemill1 doemill1 is offline
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Boat: 1994 Maristar 225 VRS Indmar LT1
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Ugh!!'nn

I have been in contact with Charlotte ski boats. They have one listed but it's not available. They did give me a resource to contact for repair if the case may be. Soon as I get home; I found someone that will put a reader on mine to give me a definite good or bad !
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  #16  
Old 06-18-2013, 06:48 PM
doemill1 doemill1 is offline
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I do have power everywhere; even on ignition circuit( purple wire) I am wondering if the ECM needs a signal from Alternator before firing? The Alternator is probably toast.
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  #17  
Old 06-19-2013, 01:05 PM
doemill1 doemill1 is offline
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Boat: 1994 Maristar 225 VRS Indmar LT1
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Does anyone know if the ECM needs a signal from Alternator to activate the ignition ?
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  #18  
Old 06-19-2013, 10:17 PM
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Originally Posted by doemill1 View Post
Does anyone know if the ECM needs a signal from Alternator to activate the ignition ?
The ECM receives RPM information on the purple/white wire from the IC (Ignition Control) module. If you crank it and don't see 1-2VDC when measured with a multi-meter, I would look at the crank position sensors and the IC module. Reverse polarity could damage the IC module, causing no spark. The RPM info also tells the ECM to latch the fuel pump relay, so if you don't hear the relay activate while you crank, measure the voltage on the trigger wire (tabs 85 or 86 on the relay). Also, make sure you see 12VDC on all of the fuses.

I want to reiterate- have the alternator checked before doing anything else. If the bridge rectifier is bad, you'll be sending AC to everything and none of it is made to operate with AC voltage. Don't even crank it if you don't know for a fact that the alternator is perfect.
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  #19  
Old 07-09-2013, 06:55 PM
doemill1 doemill1 is offline
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I just came back to this thread and found the extra posts,

Thanks guys .
JimN, you were right on the money!!!!

I ordered an Indmar manual from Amazon which lead me in the same direction. I ended up getting an IC Module : NAPA # TP-415. ( Cadillac Northstar ) ( $ 291.56) I also had the Alternator rebuilt ( $ 187.00 ) and boat is good to go. The hardest thing I had with the whole repair was to get anyone to read the computer in time to use the boat for the 4th of July holiday.
Anyhow the boat is back on the water; but with the same overheating problem that I was working on in the first place. We'll save that for another thread.

Thanks Again !!!!!
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  #20  
Old 07-09-2013, 10:11 PM
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Conrats on a relatively easy fix... let's tackle that over heat in another thread... '94 - I bet you have some passages blocked in the manifolds and risers...
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