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There are two; the price may vary by year. As an example though, for a 2010 the upstream (before the catalytic converter is about $130, the downstream (after the converter) is about $100.
These parts are expensive but don't often break/wear out. Make sure you don't have another issue. If you are getting an OBDII code for the downstream sensor (such as below efficiency threshold) , its probably a problem with the cat, (which don't often break on their own) caused by another issue (rich fuel mixture, dead cylinder).
What else can I help you with?
Diagram of oxygen sensor for 2000 ford focus?
A 2000 Ford Focus oxygen sensor diagram can be obtained from most Ford dealerships. The diagram can also be found in most Ford repair manuals.
Where is the coolant temperature sensor on a 2001 Ford Focus?
Where is the coolant temperature sensor on a 2001 ford focus?" Where is the coolant temperature sensor on a 2001 ford focus Where is the coolant temperature sensor on a 2002 ford focus
Where is the number 1 oxygen sensor in a 2004 ford focus located?
It is located before the Calaytic converter
Where is the temp sensor on 2000 Ford Focus zetec engene?
Where is the temp sensor on 2000 ford focus zetec engine
Where are the Bank 1 Sensor 1 oxygen sensor on a 1998 Ford Explorer?
Where are the Bank 1 Sensor 1 oxygen sensor on a 1998 ford explorer?
How co you change an oxygen sensor in a 2003 Ford Focus?
unplug from loom, get big spanner and unscrew from exhaust. refit in reverse
You have a 2000 ford focus when you drive it feels like it is going to stall and an engine light comes on?
It is most likely your oxygen sensor
Where is the oxygen sensor located on a 2001 Ford Focus?
In the duct between the air cleaner and the engine, with a bunch of wires, on a plug, hooked to it.
How do you change an oxygen sensor on a 1981 ford ltd crown Victoria?
The 1981 Ford Crown Victoria does not have an Oxygen sensor.
What is the engine layout of a Ford Focus?
cooling sensor for 2004 ford focus zts radiator
Where is the coolant temp sensor on Ford Fusion?
where is the engine mangement temp sensor on a ford focus and how is it fitted
Where is the heated oxygen sensor 1996 Ford Taurus?
The 1996 Ford Taurus heated oxygen sensor can be found behind the dashboard on the passenger side of the passenger compartment. The oxygen sensor should be labeled as such.
