Chrysler Repair: chrysler pacifica no start, chrysler pacifica, valve control

Question
i changed egr valve control sensor (fuel and air), wont start and after i crank it the asd relay is making a ticking noise..

Answer
Hi Jessie,
I am not familiar with the term 'egr control sensor (fuel and air). Can you be more specific as to what this is and why you changed it? And did it start before you changed it, or was it not starting before you changed it? Have you trie for fault codes?  Try the ignition key:on-off-on-off-on and leave on, doing that in 5 seconds or less elapsed time. Then see if any 4 digit number show up in the odometer window of the cluster. If not, then a plug-in readout is the only way to get codes that may explain why it won't start. On the asd relay, do you mean it click while you are cranking it, and or do you mean it clicks after you stop cranking it, and if so for how long? Also what is the year model and the engind size?
Roland