5.8l OMC King Cobra EEM module 1993

jlormis

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I am stuck. I have a 1993 5.8l 351 with an EEM module. I am not geting any spark out of the coil at all. From everything I have done to this point the problem seems to be with this illusive little black box. There is another possiblility that I have thought of, the timing sensor, but it seems to check out ok. I was wondering if anyone has any info on how to possibly test the eem module, or if it even likely to have failed. Perhaps I need to keep looking for the problem elsewhere. Any help is appreciated.
 

a.d.mobile

Petty Officer 1st Class
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Jul 15, 2002
Messages
326
Re: 5.8l OMC King Cobra EEM module 1993

first lets make sure we are getting voltage to it and a good ground. is it mounted on a bracket attached to the exaust elbow? if so loosen the bolts and re torque. it might be mounted to the valve cover. I will try and read up on it tonight when I get home, been real busy getting storage back in before beer day.
 

jlormis

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Re: 5.8l OMC King Cobra EEM module 1993

there appears to be good voltage and the ground is excellent. The EEM/Coil housing is mounted to the exhaust elbow on the port side. I took the bracket off and even removed the EEM module to be sure the ground wire to the bottom of the module was OK and everything checked out.
 

tommays

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Re: 5.8l OMC King Cobra EEM module 1993

its a hard one because there are not as many around<br /><br /><br />whats the chance of getting a manual with the methods to check each part as good or bad<br /><br /><br />tommays
 

jlormis

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Re: 5.8l OMC King Cobra EEM module 1993

I have tried to come up with a manual - the one I have doesn't give a lot of information about the system and no methods of testing - I can't even find a replacment EEM module<br /><br />I guess the next question would be should I change out the entire ignition system? And if so what should I go with?
 

a.d.mobile

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Re: 5.8l OMC King Cobra EEM module 1993

I will look tonight it is suposed to be raining I will have more time. how does the crank sensor look? and wires.
 

jlormis

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Re: 5.8l OMC King Cobra EEM module 1993

a.d.mobile I guess I was not aware that this engne had a crank sensor. I'll have to go back and check.
 

Boatin Bob

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Sep 24, 2001
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1,858
Re: 5.8l OMC King Cobra EEM module 1993

j. allen....are you absolutely sure you have an EEM (otherwise known as Spitfire Ignition?) This would be a rectangular unit that the plug wires attach to, my book doesn't show the 93 5.8 having that but it has a distributor with an ESA module of course. Do you have EFI or carb?
 

jlormis

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Re: 5.8l OMC King Cobra EEM module 1993

Boatin Bob, Yes without question it has the EEM (spitfire ignition) and it is used with a 4bbl carb. It is the 1993 King Cobra in which they used the EEM. AS far as I can tell they only used a few of these in 1992 and 1993. My engine has the distributor with the EEM module. The coil sits on top of the EEM in a combined housing protecting bothe the coil and the rectangular EEM. The only wires coming out of the EEM are the wires to the coil (and the sensor readings back to the pannel)I mjst admit I have never seen this setup before and to be honest it is kicking my butt at this point. I just do not have enough information about how the system is supposed to work to properly check it out. However, from what I can see I do not have a crank sensor though.
 

a.d.mobile

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326
Re: 5.8l OMC King Cobra EEM module 1993

j.allen I,m sorry bud, I do not have that book I tried to scam one from a dealer buddy but his book was missing from the shelf. where the dist would go is it pluged off? should be, is there wires coming from it? the crank sensor in on the back of engine the tone wheel hooks to the flywheel.<br />lets go back to step 1 how about the kill switch lanyard? hooked up? un plug it and temperly use a jumper wire to bypass it and check for spark. bob...
 

Boatin Bob

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Re: 5.8l OMC King Cobra EEM module 1993

OK...you've got me totally confused. The only Spitfire I've seen was on a 4.3 and it had a box that the 6 plug wires attached to, it also had the timing sensor on the flywheel and had no distributor. I'm not really sure what you have, book says the 93 5.8 should have an electronic igniton with a coil and distributor but the EFI model has something else. Very little in the book for trouble shooting...will look again.
 

jlormis

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Re: 5.8l OMC King Cobra EEM module 1993

Yes, it is a very strange set-up. This is on the 5.8l and was classified as H.O. The EEM module is used in conjunction with the distributor. It does have the timing sensor (crank shaft sensor) and that checks out o.k. Seloc has a book that has this engine in it. It is the '93 King Cobra. However they do not have much information about the system, and no information on how to test it. I spent about 8 hours on Saturday going through the electrical system checking everything to make sure it was all functioning as it should. Everything checks out to the EEM module. This module is obsolete and now I am at the point where I want to put a different distributor in and change out the ignition system. Does anyone have any suiggestions on what I should install. I will need to install a ESA module because this was part of the function of the EEM. So I guess I need some ideas about what distributor to go with and what I should do about an ESA or any other options I might have.<br /><br />thanks,<br />j. allen
 

Boatin Bob

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Re: 5.8l OMC King Cobra EEM module 1993

Check out this link...it does show parts for 4 different 5.8's for 1993, the 5.8, 5.8 King, 5.8 EFI and 5.8 King EFI. Maybe you can give them a call to see what stock they might have or maybe you can use the same distributor/ignition as the reg 5.8? 1993 5.8 Parts list
 
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