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Old 07-19-2011, 11:26 AM   #1
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Default Icm

Prompt what to buy ICM
There is no spark on 1-4 cylinders

The such will approach?
http://cgi.ebay.com/ebaymotors/IGNIT...item231170dc3c

my car 1993 SSEi
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Old 07-19-2011, 12:15 PM   #2
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The front coil pack fires cylinders 1 and 4. Switch it with one of the other coil packs. If the problem moves with the coil pack, replace the coil pack. If not, it definitely could be the ICM.

I think it is more likely you have a bad coil pack.
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Old 07-19-2011, 01:13 PM   #3
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Interchanged the position of coils, added others. All the same there is no spark on 1-4
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Old 07-19-2011, 04:38 PM   #4
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I am still suspicious of the coil, since cylinders 1 and 4 are on the same coil. Are the connections between the coil and the ICM nice and clean. Check the electrical connector to the ICM for a good connection and clean contacts. Check your plugs and wires, particularly on cylinders 1 and 4.

The ICM you found on Ebay is correct for your car. If the coils, plugs and wires are okay you can try that next.
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Old 07-19-2011, 04:53 PM   #5
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Wires new SPARK
Coils used ACDelco, have passed check by a multimeter
Contacts are checked up

ICM dead?
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Old 07-19-2011, 05:09 PM   #6
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It'* possible the ICM is bad. If the connections to the primaries is bad then that coil will not fire. You can test this be removing all the plug wires from the coils and then crank the engine. You will see spark between the coil posts.
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Old 07-19-2011, 05:14 PM   #7
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ICM would be the next step.
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Old 07-19-2011, 05:37 PM   #8
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Icm - cps - ?
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Old 07-19-2011, 05:39 PM   #9
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Quote:
Originally Posted by atom View Post
Icm - cps - ?
Sparks aren't present :(
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Old 07-19-2011, 05:41 PM   #10
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Whether there is a sense to buy in using
http://cgi.ebay.com/ebaymotors/IGNIT...item45fafc7687
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