The NGK AFX is a true air/fuel monitor that senses exhaust oxygen, carbon monoxide, hydrogen, and hydrocarbons in the exhaust and calculates real time air fuel ratio (AFR). NGK # 91101 .Picture from:
http://www.bmotorsports.com/shop/product_info.php/cPath/103_107/products_id/357?gclid=COvv56jAu5ECFR0XkgodwzKZOA
Accurate Information
The NGK AFX Air Fuel Ratio Monitor is the most affordable ?true? wideband technology to date. Many low-cost air-fuel ratio monitors do not use wideband sensors; they simply manipulate a standard narrow-band oxygen sensor signal with rough inaccurate data resulting in only marginal success. The NGK AFX Air Fuel Ratio Monitor reads air fuel ratio (AFR) values from 9.0 to 16.0 with a resolution of 0.1.
True Wideband Technology
The NGK AFX is a true air/fuel monitor that senses exhaust oxygen, carbon monoxide, hydrogen, and hydrocarbons in the exhaust and calculates real time air fuel ratio (AFR). Air Fuel Ratio is a crucial parameter that dictates horsepower and engine performance. Performance enthusiasts and tuners can use Air Fuel Ratio information to make adjustments to the fuel delivery system (carburetor, fuel injection) to help achieve the maximum horsepower available from their engine. The AFX is compatible with both Bosch LSU and NTK UEGO (wideband) sensors without any changes in hardware or programming and offers superb accuracy (comparable to some laboratory grade systems).
Cost Effective
Traditionally these types of tools commanded price tags in the thousands of dollars putting them out of reach for most enthusiasts and amateur/grassroots racers. NGK?s advances in technology have made this highly accurate tool affordable.
Experience
NGK-NTK is the world leader in exhaust gas sensors and sensor related technology. They supply OEM oxygen sensor technology to a huge range of Asian, European, and domestic auto manufacturers.
Analog Compatible ( This is highly important with OEM Engine Control Unit)
The NGK AFX has a 0 ~ 5V, linear analog output for AFR that can be used as an input to an engine controller, data acquisition system, or analog gauge with 0 to 5 volt input. Most Oem systems use analog signals to the computer that samples them a few times per second. The analog controller less 02 sensors are less effective and slower than a digital 02 with a processor to calculate the exact 02 level.
True Wideband NGK controller and NGK Sensor for $374
NGK Controller with Bosch 02 Sensor for $249
I have found that I am in need on a O2 sensor that is worth somthing as the sensitivity of tuning is much greater with the 420a Turbo charged motor has there are less factors to work with. We already don't have a map sensor that reads boost so All we can do is tune the fuel as close as possible and let a Good )2 sensor adjust the rest. This is intended for Mitsubishi Eclipse and Eagle Talon DSM Turbo cars out there looking for a good tuning alternative. I believe I will use this one myself to maintain a stoich fue mixture.
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