I have a 2007 Dodge Durango, 5.7 Hemi. I am having the same gas cap issues, that I have reset several times. I also tried the negative terminal disconnect. The issue of the gas cap and engine light still persist. I have taken it to the dealer twice and they cant fix it either. I had installed a cool air intake and cut out the catalytic converters and installed a straight pipe a while back. I assumed that may be part of the problem, but obviously not. I have read about this same complaint before on other sites. Is this a recall item that Dodge has put out? How do you fix this? I moved to Dallas, Tx from Phoenix and cant get my truck registered until this is fixed.