i got those two from pulling the CEL codes myself. It's the vehicle speed sensor and automatic transmission signal to ECU.

I don't feel anything wrong with my car when I drive. speedometer still works and transmission doesn't shift weird.

anyone know what could be wrong, and how much it might cost to fix?

thanks, any input appreciated!!

I have the same problem. Mine comes with occasional O/D light blinks in addition to two CEL codes. The dealership replaced VSS more than a year ago (I was naive enought to go straight to the dealership then) and still having the same problem.

http://autorepair.about.com/library/faqs/bl035e.htm

This might help. I'm hoping that this is it and ordered the wire harness repair kit last week. The price was like $20 shipped.

So my suggestion is not to replace a VSS quite yet if there seems nothing wrong with the VSS.

The TSB is titled "EGI Wire Harness Breakage Diagnosis And Repair Procedure" in JaTaN's sticky. There is a part number for the harness repair kit in there if you're interested.

if you need help replacing the vss, let me know, i did it and wasted my time and money, but i did it. was ~$30 i think shipped. not too hard to do once you know where it is.

Thanks that's pretty helpful. I never thought of that. Can you let me know when you get the kit to see if it works?

The article said if you have a code for P0500 and you find a break, that might be it. My codes were 0504 and 0104, if that means anything..

The VSS is only $30? or are you referring to the repair kit?