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Fueltech WBO2 Slim

Brand Fueltech
Model WBO2 Slim
Output Type Common mode (signal ground and power supply ground are common)
Sensor Type Bosch LSU 4.2
Fuse 10A

Wideband controller with display. Can be connected to 12V battery or a 12V/5A power supply.

Typical installation is a fixed installation in the exhaust pipe, a few centimeters after the manifold junction. In dynamometers, it can be used with an adapter at the exhaust pipe outlet as explained here.

IMPORTANT

Read the manufacturer's instructions and follow the recommendations for position, mounting, and fuse.

Connection to Accudyno

Connection to Accudyno

Cable/Color Function GO/PRO Gyra/Forza
Yellow Analog Output (+) Accudyno IN+ (AFR Pin 3) AIN1
Red Power Supply Positive (+) Battery(+)
Black Common Negative (-) Accudyno IN- (AFR Pin 2) and Battery(-) GND

Typical Calibration

This model has a calibration that is modifiable by the user. Here is the typical factory calibration.

Voltage Lambda AFR (Gasoline)
0.2 V 0.65 9.56
4.8 V 1.3 19.11