replaced front bank 1 sensor and two codes still there. p0053 and p2270.

Question

I replace the front bank one oxygen sensor and it is still throwing these codes up. Is it the rear sensor or wiring do you believe? thanks

Answer 1

P0053 H02S heater resistance circuit sensor 1

P2270 H20S signal stuck lean.

When you get code P0053 ignore code P2270, this comes as a result of P0053. What you need to check first is the fuse for the heater circuit this is located in the engine fuse box ans is listed as EMS-2 EF 25 which is a 10 amp fuse, replace if open,and check to see if it has power (12 volts).