Apparatus and method for detecting failure of exhaust gas...

Apparatus and method for determining amount of unburned fuel...

Apparatus and method for determining catalyst degradation

Apparatus and method for diagnosis of catalyst performance

Apparatus and method for diagnosis of catalyst performance

Apparatus and method for diagnosis of catalyst performance

Apparatus and method for electronic throttle control power...

Apparatus and method for emissions containment and reduction

Apparatus and method for engine exhaust purification

Apparatus and method for estimating NOx trap catalyst...

Apparatus and method for estimating NOx trap catalyst...

Apparatus and method for estimating the temperature of an automo

Apparatus and method for filtering particulate in an exhaust...

Apparatus and method for force feeding air to a carburetor used

Apparatus and method for heating an automotive catalyst to...

Apparatus and method for internal combustion engine control

Apparatus and method for internal-combustion engine control

Apparatus and method for interrupting regeneration of a...

Apparatus and method for introducing secondary air for cleaning

Apparatus and method for modeling and fabricating tubular...