Help,
2004 2500HD Duramax LLY. 19K miles. Stock tires and wheels.
Last week, I installed the Juice w/Attitude
2 days later, I installed the Banks 4" exhaust (after the Cat)
4 days later (today) the check engine light came on!!!!!
it is a steady on. in the manual, it says that it is the emission system malfunction?
what should I do?
besides the above modifications, it is a stock truck.
please help.

was reading this thread.

http://www.dieselplace.com/forum/showthread.php?t=21224&highlight=check+engine

Disconnected the Juice, start and stop the engine a few times.
the check engine light went away.

now what?
should I plug the juice back? (already did)
will this happen again?
will I have to do this all the time?
will this leave a record in my computer?
please help! :) thanks in advance.

See if you can get the codes read. Some of the big box parts stores will read your codes for free.

Called Edge Products, they will sent me a new Juice to swap.

hope this will work, I will post the result here after I get the new part.

The 911 forum is NOT for posting this type of problem. It is FOR EMERGENCIES ONLY!