Will it hurt my 4.0 to drive with a bad pre-cat?

[KCsTJ]

I have a wheelin trip.scheduled Saturday.... so up pops a code P0431, warm up catalyst efficiency below threshold, bank 2.
It needs new precats, that's the only fix here.
Would it hurt to put say 500 miles on my jeep with that code displayed?

 

[KCsTJ]

I have a wheelin trip.scheduled Saturday.... so up pops a code P0431, warm up catalyst efficiency below threshold, bank 2.
It needs new precats, that's the only fix here.
Would it hurt to put say 500 miles on my jeep with that code displayed?

I found out the answer, yes the engine will run rough and lose power.
I was able to get home today by disconnecting the battery for 5 minutes which cleared the code.
Time for new precats at 102k miles. Ugh.

 

[Chris]

Yep, at 102k miles it is indeed time for new pre-cats!