I ordered my chip from JDM on monday and he said it would be here by the end of the week! Has anybody had problems on a 01 L with just a chip?

 

Any mods can cause problems...

Be sure to clean the Computer REALLY good since this is your first chip. If you tape the chip in make sure you tape it evenly on both sides and do not pull it to one side or the other. Make sure you have the battery unhooked before you do anything....

 

JDM has some awesome programs for the 2001's
You will love the chip and what it does to your truck.
Don't worry, be happy you made a wise purchase.