I have a 1998 Dodge Ram 1500 with 5.2 engine. I have no spark from plugs, no spark from coil and no power going to coil. All relays have been changed/swaped. All fuses changed and checked out. New Cam Sensor, New Crank Position Sensor. I Can't figure this one out. Can some one help. So far havn't found any broken wires, but who knows.
Thanks,
Roy

 

Does the fuel pump prime at initial key on?

You will only have power at the coil for about 3 seconds, unless the PCM sees the engine turning.

 

Yes the fuel pump primes. No power to coil at all, any time

 

Almost forgot, tried another pcm, (computer) still no spark

 

Check engine light on? If so, any codes from a scanner, pending or stored?

 

The asd relay provides power to the coil, Is it engaging with the ignition on? Did you try swapping it out?

 

N codes stored, no check engine light. tried several different known good relays for the asd. Still no spark. I am at a loss.

 

Verify power at pin 30 on the ASD relay. Verify power at pin 86 (85?) at relay with key on. Verify continuity of wire from relay socket (pin 86?) to the PCM.

 

I checked power to coil and here is what I found. Had wife try to start truck and used a test lite on the power wire to coil. As long as she tried to start it, which was about 15-20 seconds, the light stayed on. Flickered just a little, but was on. it is a 12 volt test light so light was very weak. tried another coil and still no spark. Not sure how to do the test your suggesting. With power going to coil and no spark, what am I missing?

 

I checked power to coil and here is what I found. Had wife try to start truck and used a test lite on the power wire to coil. As long as she tried to start it, which was about 15-20 seconds, the light stayed on. Flickered just a little, but was on. it is a 12 volt test light so light was very weak. tried another coil and still no spark. Not sure how to do the test your suggesting. With power going to coil and no spark, what am I missing?