A wideband oxygen sensor (commonly referred to as a wideband O2 sensor) is a sensor that measures the ratio of oxygen to fuel vapor in the exhaust exiting an engine. The measured ratio is expressed as parts of oxygen to fuel.

What is the benefit of using a wide band sensor?

Wideband sensors also open up the entire fuel table to the closed loop. This gives you absolute accuracy of air/fuel ratio at all times, even when you’re pushing your engine to its limits. This is why nearly all tuning professionals use strictly wideband sensors.

What is wideband purpose?

A wideband sensor can detect oxygen content in the exhaust that’s way below or way above the ideal air/fuel ratio of 14.7:1. More control of new lean-burning engines that emit ultra-low emissions is necessary today.

How does a wide band work?

The wideband air/fuel ratio sensor combines an oxygen-sensing “Nernst” cell from the narrow band sensor with an “oxygen pump” to create a device that gives a wide range response to various air/fuel ratios. The Nernst cell senses exhaust gas oxygen in the same as a conventional narrow band O2 sensor.

Is a wideband necessary?

You need it if you don’t wanna blow the motor due to running lean. Every other gauge is optional. A Wideband gauge is a must and install it right in front of your face so you always know what’s going on with the A/F ratio when the car is on boost.

How do you tune a carb with a wideband?

Quote from video: Depending a carburetor isn't difficult and although there are several things you can do to dial in your carb. Changing the Jets is the biggest effect on overall performance.

What is a wide band in tuning?

In short, a wideband oxygen sensor will give you a measurement of your Air/Fuel Ratio from about 10:1 up to about 20:1 AFR allowing you to target exactly the AFR you’re after at all times.

Can you tune without a wideband?

Well you can’t do it right without the wideband, hope you have a good wideband also because that will come into play also. If your “tuner” does not have his own wideband then you need to find someone that does.

What is a wideband for turbo cars?

Quote from the video:
Quote from video: This is in the form of a wideband oxygen or lambda sensor as it may also be known these are typically fitted in the exhaust system somewhere. After the turbocharger.

Do you need an O2 sensor if you have wideband?

A wideband O2 sensor is absolutely critical for tuning. You need to be able to monitor AFR in order to tune an engine. Period. The wideband is therefore a tuning aid, not an upgraded sensor.

Can I replace my o2 sensor with a wideband?

Quote from the video:
Quote from video: You can't change a factory narrowband sensor for a wideband.

How do I know if my car has a wideband o2 sensor?

If It Is A Wideband Sensor:



If your sensor is a wideband sensor, there will be TWO SIGNAL WIRES – these are called the “Current Pump” wires. The voltages on these current pump wires varies from manufacturer to manufacturer. Toyotas have 3.0 volts on their reference wire and the 3.3 volts on the current return wire.

Where do you put the wideband o2 sensor?

Quote from the video:
Quote from video: So if you place your wideband in the exhaust system before the turbo the back pressure of the turbo can't affect your AFR readings we recommend placing your wideband sensor after the turbo.

Where should I position my wideband?

Ideally, the O2 sensor should be placed at least 24 inches downstream from the cylinder head exhaust ports. This ensures that the O2 sensor takes its measurements after the exhaust gas from each primary merges into a common collector.

How do you install a wideband sensor?

Quote from the video:
Quote from video: And you want to just take the oxygen sensor and just like mock it up as to where you put it before you drill into the pipe. This would make sure it's clear of any obstructions.

How do you wire a wideband ECU?

The wideband is connected to the pin on the ECU that the stock narrowband O2 sensor connects to. You can simply cut the stock wire close to the ECU plug and solder the Wideband O2 analog 0-5v wire to the wire coming from the ECU. Or alternatively you can utilize the stock O2 sensor harness.

How do you wire AEM wideband into ECU?

Quote from the video:
Quote from video: So this pin will send the signal to the ecu. Much in the same way as the stock o2 sensor did so i can hook the white wire from the gauge up to that and then this pin is the signal.

How do I connect my wideband to Hondata s300?

Quote from the video:
Quote from video: So i'm going to show you how i hook that up and how to set up the parameters. In the um hondata s300 uh s manager software. So let me go grab the keys. And then i'll uh show you how i did this.

How do I install AEM wideband Integra?

Quote from the video:
Quote from video: So let's just go ahead and start hooking this thing up so. I went ahead and jacked up the car and basically if you look all the way down there you see that little knob coming out of that pipe.

Where do you put the air fuel ratio sensor?

If headers are used, the oxygen sensor should be installed in the collector. If cast iron manifold(s) are used, install the sensor in the pipe just below the manifold. Mounting in the left or right side is acceptable.

Is an air-fuel ratio sensor the same as an oxygen sensor?

An air/fuel sensor can read a much wider and leaner range of fuel mixtures than a conventional O2 sensor. That’s why they’re also called “wideband” O2 sensors. Another difference is that A/F sensors don’t produce a voltage signal that suddenly changes on either side of Lambda when the air/fuel goes rich or lean.

What does an air-fuel ratio gauge do?

An air-fuel ratio meter monitors the air–fuel ratio of an internal combustion engine. Also called air–fuel ratio gauge, air–fuel meter, or air–fuel gauge, it reads the voltage output of an oxygen sensor, sometimes also called AFR sensor or lambda sensor.