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Originally Posted by Boxtaboy
Jay, the only thing I understand in your post is the ale. Lol. What is that you are installing?!
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Typical narrow band oxygen sensors found in most cars are only accurate in reading the oxygen content in an exhaust stream (and therefore projecting the air/fuel ratio) near the stoichiometric ratio. This is only useful when the car is running at low loads (cruising) when you want the engine to be running near this ratio. They aren't accurate at reading the air/fuel ratio when the car is at high load (accelerating) or idle. Therefore, they're not very useful for tuning an engine.
The wide band oxygen sensor has a different construction that allows it to be accurate for a much wider range of air/fuel ratios. With this sensor, you can measure and tune an engine for optimal operation under all driving conditions.