A couple nights ago truck goes into Limp Mode on Highway. THought it was same problem with tranny had before.

Took to dealer and this is what they came up with.

"51879 Checked for the check engine light coming on. Checked the PCM for codes and found that it had a code P0202 Injector Supply Voltage Circuit. Done the diagnostic for the code could not duplicate the code resetting"

So basically the truck broke down, had to be towed in, reset itself overnight and now they say nothings wrong.

ANy ideas what this is and should I be worried?

THanx
Jim