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1996 3.9 1st gen dakota no spark

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Old Jan 29, 2020 | 04:58 PM
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Mike Killian
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Default 1996 3.9 1st gen dakota no spark

Replaced camshaft shaft , crankshaft sensor, distributor rotor, rotor spins, fuel pump, ignition coil, replaced ads and ignition relays,and checked the splice under the fuse box. I have power to the ignition coil but non coming out any ideas?
 
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Old Jan 29, 2020 | 06:34 PM
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Is the computer firing the coil? (use a test light in the connector, computer breaks the ground side of the circuit to fire the coil.) Are you getting injector pulse? And codes?? If you didn't get a mopar crank sensor, that is going to cause problems....
 
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Old Jan 29, 2020 | 06:36 PM
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Originally Posted by HeyYou
Is the computer firing the coil? (use a test light in the connector, computer breaks the ground side of the circuit to fire the coil.) Are you getting injector pulse? And codes?? If you didn't get a mopar crank sensor, that is going to cause problems....
only throwing a code for engine coolant temp sensor could not firing and I replaced the whole distributor unit with a spectra unit from oriellys injection is getting power
 
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Old Jan 29, 2020 | 06:45 PM
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That was a little hard to understand... I got the part about only code is for coolant temp sensor....

If you replaced the distributor, and not just pieces/parts inside it, you are going to need to get fuel sync reset. Of course, that means it needs to run first.

It sounds like everything is pretty much as it should be, but, if you aren't getting spark from the coil, it isn't ever going to run.
 
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Old Jan 29, 2020 | 07:24 PM
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Let me try to clear it up truck stalled one day hasnt started since no spark so I replaced the ignition coil then the crankshaft then the entire distributor (cap,rotor, and camshaft sensor)still no spark so then I pulled the relays checked to make sure I had power to the relays. Then I checked the common faulty splice under the exterior fuse box looks brand new. Only code is ECT I have power going all the way through the to the ignition coil but no power coming out of said coil the fuel rail has power and pressurized nicely
 
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Old Jan 29, 2020 | 08:01 PM
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I suspect you got a bad coil.....
 
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Old Jan 29, 2020 | 08:16 PM
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When I first started working on my truck 2 weeks ago I had no spark. I did a test with a small LED light on the wires going to the coil (i found the info on the internet and don't remember how I hooked it up but it was pretty easy) anyway first I followed some info on youtube and the guy used a light bulb that doesn't work! The signal from the computer is really fast and really tiny. After I hooked it up and turned the key the LED started flashing so I know I needed a coil.
 
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Old Jan 29, 2020 | 08:26 PM
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I thought maybe the one I bought was bad so I bought a second one and same results
 
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Old Jan 29, 2020 | 08:35 PM
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Here Mike http://files.russwill.com/wp-content...a1994-1996.pdf
I found this the other day it has 1500 pages of info on our trucks I have a 1994. If you don't have it I bet it will help you out!
 
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Old Jan 29, 2020 | 09:55 PM
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Also, in the FAQ message, there's a link to the factory service manual.

I'd grab that soonest so you have the FSM to refer to.

RwP
 
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