CEL Is the Check Engine Light, also referred to as a SES (Service Engine Soon) or MIL (Malfuncion Indicator Lamp). It shows up as a light on the dash that looks like a little motor. It lights up when there are trouble codes stored in the vehicles PCM (Powertrain Control Module). You can check the codes by turning the key on-off-on-off-on, or Autozone and most part places will scan for codes for you. Ask if you have any more questions, hope this helped man!
Best of luck,
Yes this is the correct way to contact the other members here in the forum, but it wasn't me who answered to your thread, it was Zekery360 (http://www.ramforumz.com/member.php?u=2513), ask him! Sorry but i have no clue what CEL is
But any help you need with the forumz please contact me.