1998 cadillac deville trouble code issue
 

I did a scan a couple weeks ago and all that came up was rr wheel speed sensor. Got that fixed. My fuel pump is getting week and it takes a bit to start. ive got a pump to put in just havent gotten to it.

Anyway, I was driving to work one day and and the service engine soon light came on. I hooked up a scanner to it today and it came up with

P0155 Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction
P0300 Engine Misfire Detected

P0404 Exhaust Gas Recirculation Open Position Performance

P0741 TCC System Stuck Off - Mechanical (4T65-E, 4L80-E)

What would make all these connected? EGR?

I did clear the codes and it hasnt came back on yet.