P0141 - Ford fiesta st150

Question

P0141 - 02 sensor heater circuit bank 1 sensor 2

is this because i have a decat on my vehicle will this cause this fault thanks

Answer 1

Hi there,

It can be the cause. Without the converter on the car the rear O2 sensor is not going to get the correct readings. This will likely keep the heater on to long and it will eventually burn out the heater wire in the sensor.