2002 Ford Mustang V6 My car started having a new problem yesterday. When I drive down the road randomly the pedal loses rpm's. For instance I'll be going 40mph and then there is no resistance on the pedal as if I am idling. I have to put the car in neutral turn it off and turn it back on while it's still rolling to get it to work again. It has happened to me 3 times in the last 2 days. I am getting the following error codes: P0420: Catalyst System Efficiency Below Threshold Bank 1 CONFIRMED and P1233: Fuel Pump Driver Module Off-Line CONFIRMED
About 3 months ago I had a used transmission put in by my mechanic and it came with a 6 month warranty. I was wondering if any of these error codes have anything to do with the transmission so it would be covered under the warranty or are these issues not relevant