These sensors have a laser-etched, calibrated resistor in the sensor's connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will...
The Bosch LSU4 Oxygen Sensor is widely used in the FAST product line. Finding its way into the FAST EZ-EFI Fuel, EZ-EFI Fuel + Igniton as well as the XFI Sportsman and even the FAST Air/Fuel Meters,...