C Series Oxygen Sensor Interface Module

Provides an interface for multiple wideband and narrowband exhaust oxygen sensors.

The C Series Oxygen Sensor Interface Module provides an interface for Bosch LSU 4.2 or LSU 4.9 wideband exhaust oxygen sensors and differential narrowband oxygen sensors. The driver allows user-calibration of stoichiometry versus pump‐current for a variety of fuel types (gasoline/diesel default). O2 (oxygen) measurements are reported as A/F, F/A, Lambda, and Phi. The module has serviceable, fuse‐protected heater control circuits.