An improved engine control system using a NOx sensor is disclosed. In one example, the NOx sensor structure and/or signals are modified to improve distance transmission of NOx sensor output signals so that at least some processing electronics can be relocated remote to the sensor and in an engine control unit, or other such control unit utilizing the NOx sensor signals, and controlling the NOx sensor heaters, if applicable.

 
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< Turbocharged engine control system

> Inter-cylinder variation detection device and inter-bank variation detection device of internal combustion engine

> Recycling system for a chemical laser system

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