after replacing engine I am not getting any spark from the coil

1996 DODGE RAM
225,000 MILES
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SLC240
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I replaced the engine and have everything hooked up correctly as far as I can tell. I tried starting the engine but I get no spark from the coil. This is a 5.9 liter magnum engine. I have checked the circuit to the coil and cannot get 12V. I hooked up a small wiring harness between the coil and the connector and checked for voltage and have no voltage, then I tried that while starting and got a flash of 11.93 volts then it dropped off to 0 voltage. This circuit also includes the injectors and I get no pulse for them. I would like to know where this circuit starts and any information about testing this circuit. Also can you point me to a more indepth wiring diagram than in the Haynes manual.

Thanks guys and I'm sure you will need more information from me but this is a starting point.

John

Nov 29, 2011 at 6:31 PM
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FIXITMR
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was engine same as 1 removed? did you switch over components to match computer already in vehicle?
Nov 29, 2011 at 6:39 PM
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SLC240
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Yes, it is the same engine. The only things changed was a small change to the cam but well within the limits of the OEM PCM parameters, a stock OEM replacement distributor and new heads with roller rockers. Other than those items it is completely the same as when I pulled the engine. I thought it might be the distributor but if I'm not getting 12V to the coil it is my assumption that the distributor is not even in play yet.
Nov 29, 2011 at 7:13 PM
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FIXITMR
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no crank sensor signal could cause these symptoms.
Nov 30, 2011 at 6:49 PM
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FIXITMR
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also check your ASD relay.
Nov 30, 2011 at 6:58 PM
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SLC240
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That's what I was thinking but I wasn't sure if the crank sensor would completely shut down the circuit or if it would just run rough. I swapped out the asd relay with another relay and got the same symtom. I will look into the crank sensor tomorrow, I also wanted to know if the camshaft sensor would cause a complete shutdown of that circuit too.
Dec 1, 2011 at 1:06 AM
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RIVERMIKERAT
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slc240: I have attached 6 images which are screenshots of the engine performance schematics that we have. There are 3 schematics, but I'm unable to download them, so I blow them up and take screenshots.
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Dec 10, 2011 at 3:57 AM