What is wideband Lambda?

A wideband sensor calculates lambda by comparing the oxygen left in the exhaust to the sensor’s reference pump cell, which is referencing stoich. Because the sensor reads oxygen content, it is impartial to the fuel type being used.

What is a wideband meter?

AEM’s Wideband UEGO (Universal Exhaust Gas Oxygen, pronounced “You-Way-Go”) Controllers are powerful, cost-effective tuning tools that allow users to accurately monitor the Air/Fuel Ratio (AFR) of an engine. Both wideband gauge designs are 52mm to fit standard gauge pods and include everything you need to install them.

What’s the difference between narrowband and wideband AFR?

Wideband sensors were developed to more accurately measure A/F ratios over a broader range of operating conditions (hence the name). A narrowband sensor can measure only between approximately 14.0/15.0:1 air/fuel ratios to report a rich or lean condition, but a wideband is much more robust.

Is a wideband necessary?

If you plan to head to the rollers to get it setup, and want a more hands-off install, then no need for a wideband at all. The dyno operator will use their own wideband during mapping, will optimise the fuelling and ignition, and, everything being equal, it should never change once tuned.

What is a good lambda value?

Tuners may wish to know that maximum power is usually achieved at a lambda value of approximately . 85 under full-load conditions.

Is a wideband gauge 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.

Is wideband better than narrowband?

The terms “narrowband” and “wideband” refer to the actual radio channel bandwidth. The benefit of using a narrow channel is the lower noise bandwidth and hence better sensitivity and range. The advantage of wideband is the capability to transfer higher data rates.

Why do I need a wideband O2?

Wideband O2 sensors monitor the amount of oxygen in the exhaust to measure the Air Fuel Ratio, or AFR. The AFR tells your tuner whether the car requires more or less fuel to achieve the best power or economy, and allows your tuner to keep the engine safe.

Do I need an O2 sensor if I have a wideband?

A wideband o2 sensor gives you the data you and your ECU need to be able to tune that properly. While a narrowband can only tell you when it’s 14.7:1, and is therefore nearly useless for tuning for anything other than a steady cruise condition.