Rep Power: 256

my DDM kit sometimes doesn't fire on the first try but always turns on the second time and never gives me problems when there running . i am using a realay harness that i grounded to the battery terminal could this be the cause of the problem should i ground it to the frame. and i have plenty of battery power.

 
Rep Power: 512

weird.. I'm running a DDM kit with their relay harness, too.. I got the slim ballasts.

Only difference is I got it grounded to the frame. I doubt it should make a difference though.. Dummy check your connections?

 
Rep Power: 812

shouldnt matter. maybe the wire in the harness isnt thick enough? on startup, both ballasts draw alot of power but once they stay on for a minute, it drops down to normal 35w (or 50w depending on the kit). but the initial startup is what requires good thick power cables to ignite the bulb.

 
Rep Power: 256

the wire kit is also from ddm so i don't think thats the problem ow well its just a minor inconvenience that is a annoyance but tolerable.

 
Rep Power: 512

Which kit you get? The slim or raptor?

THe slims are digital and have very little power draw (rates 6A on startus, 3.4A constant), so thats probably why I haven't had a problem.

 
Rep Power: 256

apexcone raptor.also i noticed that it does fire but doesn't get to its normal brightness it kinda stays in limbo till i switch it off then on again.

 
Rep Power: 232

I would change the ground position, its just one bolt. who knows it may fix the problem.

 
Rep Power: 512

I'd e-amil DDM tuning and ask them for advice..

Have you tried using their troubleshooting guide?