Check Engine - Off/on/off/on what..

[Corrosive]

Long term update: It has stayed off since the last post and the weather has been off and on here. I have been looking like a moron at every fill up though, cranking it so much that everyone looks at the guy making all the clicking noise, lol. It was the gas cap no doubt and I am glad that debockle is all over.
-Mike

[VXtreme]

Check the codes and if it indicates that you have a large vacuum leak, (like a loose gas cap) it probably is the wire that goes to the purge soloniod on the gas tank. A common problem with the VX's and Rodeo's is that connection will corrode and or break through triggering the code and the check engine light intermittenly. Repair the connection.......problem solved.