d

downstream

Glossary “downstream” Definition:
Direction indicating the location of a component or fault from it’s source. 1). A downstream 02 is after the catalytic converter. 2). A open in the circuit may be downstream (toward the ground) or up-stream (toward the positive) from the point in the circuit you where you are testing. 3). Air pump discharge is directed downstream to the catalytic converter.

double wrap

Glossary “double wrap” Definition:
A flexible type of brake band designed with two segments that provide flexibility, which increases self-energizing action, used as bands in an A/T.