2003 Ford Focus "o2 sensors" Questions

O2 sensors in the engine carpartment but won't reset and I also understand there are 2 other O2 sensors that maybe causing them to not reset. to make you clear where does the oxygen sensors where is..

...o2 sensors to reach operating temperature, this P0147 can set. Symptoms For this particular o2 sensor, there may be no noticeable symptoms other than: MIL (Malfunction Indicator Lamp) illumination ...

...O2 sensor it is. The code will point to either bank 1 sensor 1; bank 1 sensor 2; bank 2 sensor 1; bank 2 sensor 2. From what I remember with a focus, it should only have 2 sensors, sensor 1 will be ...

...have the check engine light on and the scan read P0135 error - what is this? P0135 code is: Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1) This code refers to the front oxygen sensor ...

Front o2 sensor is needing to be replaced Need to replace drivers side front O2 sensor. Need to know the location of sensor to change it. The front sensor should be in front of the catalytic converter

...I believe your vehicle has two O2 sensors. One is located upstream from the catalytic converter and the other is located downstream from it. Is it possible that you changed one and left the

...O2 sensor. This usually means that the catalytic converter is worn out and must be replaced. However, the oxygen sensors must check good---a bad or "lazy" oxygen sensor won't give an accurate picture ...

...O2 sensors. PO141 and PO136. 136 is sensor bank 1 sensor 2. 141 is bank 1 sensor 1. so this info will work on both sensors. This code means that the heated circuit in the oxygen sensor on bank 1 ...

...O2 sensors switching rich to lean like thier suppose to. Using a better scan tool an looking at data , an freeze frame data . 003 Freeze Frame and Conclusion 009 Testing DCTs You could have leaking ...

O2 sensor replaced but still stalling out. I have a 2001 Focus. It had a check engine light on. It was for the down stream o2 sensor. When it ws warmed up it would sporatically loose power when you ...