Regardless of what some people may claim, it is impossible to properly tune a fuel injection system on a modified engine without some means of exhaust gas analysis. Sniper offers the AF-5000 as a low cost alternative to expensive systems. Conventional (narrow-band) exhaust gas oxygen sensors have been widely used in automotive applications since 1981. Conventional sensors have one to four wires and can only sense air/fuel ratio over a relatively narrow 14.5 to 15.0 range. They are intended to be used with 3-way catalytic converters that require operation near the stoichiometric point (14.7 air/fuel ratio). The range of narrow-band sensors is inadequate for performance tuning. While originally developed for lab and specialized automotive applications, wide-band sensors are ideal for tuning. The 5-wire Bosch LSU 4.2 sensor used with the AF-5000 operates over a range of 10.3 to infinite air/fuel ratio.

The AF-5000 features built-in data logging. This data logging capability greatly facilitates engine tuning and diagnosis of driveability issues. The AF-5000 can store data up to 2 hours of operation. You can use our WEGO Log software to download and display this data on a chart recorder type screen.

Available data includes:
1. AFR (air/fuel ratio)
2. RPM
3. 0-5V analog.