hey guys, i got a 97 ram 2500, 5.9 gas. i was driving down the road and it just died, without warning or anything, no sputtering ot anything. just died. i found that i lost spark. have the code p0351 for the ignition coil. checked for voltage at the connector and for ground. i have both. the ground is also flashing when the motor is cranking. i put a new coil, crank and cam sensor in it and i still dont have spark. im going to swap the old coil back on and see what happens. i dont know what else would cause this thing to not have spark other than a fried pcm. let me know what you goys think. thank you.

 

Have you tried swapping the ASD relay with the horn relay?

 

no i havent, i checked to see if it clicked and it did, ill give that a shot and see what happens.

 

Do you here the fuel pump running and verified pressure with a gauge?

And what brand crank and cam sensors did you buy?

 

i have good fuel pressure at the rail, i got bwd brand sensors from advance auto.

 

Well, I'm going to throw this out there. But, I strongly suggest you unscrew the pre cat o2 sensor. Unplug it, unscrew it, plug it back in (leaving it unscrewed from the pipe). See what it does.

 

what would unplugging the oxygen sensor have to do with a not having spark?

 

If the coil has power, and the ground switches, and you still don't get spark, good chance the coil is bad. Where are you testing for spark at?

 

Have you checked the cap and rotor?

 

I said "unscrew" it from the pipe.

Seems odd he would not have done that when changing the cam sensor.