99 fxd looses spark after warm up

Hello
my 99 fxd with 47,000 on it runs awesome until it warms up then riding down the road shuts off like you turned the key off. no spark but everything else works lights speedo gas gage.
while still coasting and in gear if you turn the key off then back on pop you get spark it will run for 10 seconds and then die again.

i figured the ignition module so i swapped out the screaming eagle coil and module i had for at least 45,000 miles with the stock one i saved and took her for a ride and BAM! the same thing.

Ok now i guess i'm looking at a cam position sensor or a crank position sensor problem i don't know?
i pulled the crank pos sensor and cleaned it off stuck it back in and same crap happened.
i have yet to pull the cam position sensor and check it with a multi meter.
Has anyone seen this before ?
i don't think its a bank angle sensor cause its getting hot and shutting off
any help?
Bueller Bueller anyone?

Yeah, the most common electrical problem is a bad ground somewhere. Check cheap & easy first before you start replacing things.

Yep make sure all grounds are clean and tight....had a similar thing going on with one of my cages...it would run fine until it got up to temp then no power,once it cooled down run fine for a while then same thing...turned out to be the crank sensor.

Bad Coil.

I did check for bad ground with a meter
Had continuity on all ground points
The coil was swapped as well.
Plus it starts back up when the key is cycled off then back on

Would the cam position sensor or
The crank possition sensor
not sending a signal
Cause the ignition module to stop sending spark ?

Try jumping out the key switch.

Crank sensor would stop spark,ignition system would loose the time when to fire the spark...but...if it was the crank sensor it wouldn't come back on when you cycle the ignition...starting to seem to me like the ignition switch or the breaker on the ignition system..

sounds to me like you got a funky ignition switch getting hot and droping voltage . also you might be loose rpm signal to the module from the crank angle sensor . crank sensor is a magnetic high low signal . ac current generator . you can set your multimeter on ac scale if you have a fluke and back probe that wire at module and see if you lost that signal there you will have to look at your wiring diagram to see witch one is the pin for crank signal . (rpm)

This is a high voltage wire in ignition system that is either cracked or insulation rubbed though to bare wire. When it gets hot, it opens the circuit. It's tough to find these intermittant wiring problems when in a wrapped bundle, but look for blackened (burnt) copper wire around ignition switch terminals first.

Try jmping the ignition (key) switch,

If you didn't get that bike shutting down problem fixed already, I had a similar problem on my 88 fxstc.
The engine run/off switch on the right hand control had a bad connection in the cannon plug somewhere in the harness. First I tried cleaning the carb thinking fuel contamination. I would be driving on the road and it would just die as if you turned the kill switch off. Cycle the key and it would restart while coasting in gear. Sometimes it wouldn't restart. After sitting there 10 minutes scratching my head I would try it and it would start no problem. For me it just happened to be the kill switch cannon plug but others with ill fitting connectors may have the same effect.
I hope this helps. Once had the wiring harness fall out of the frame and rub the back tire til it grounded out something, shutting the bike down. Had it towed and the bike shop found the problem as soon as they saw the bare wires by the tire. Loose connectors, bare wires and other sources of grounds and shorts are sometimes tricky to find.
Good luck.

buddy of mine has a 2000 touring rig. Last year we were out on a tour of Idaho and Montana, the bike starts acting up..shuts off turn key off and on and the bike would fire, wasn't bad at first and gradually got worse. He wound up changing out the crank position sensor and that cured it. the insulatin for the wires was chafed ..maybe it was just the wires but the bike didn't run with the old setup. Not sure if your problem is gradually getting worse but your sensor is 13 years old..