converter preheating

converter preheating
An emission control device which increases catalytic action in cold starts when HC and CO are their highest. Although not in use in current cars, it may become necessary in the future. Thus it may mean the following: Take longer to start a vehicle in the morning, require a larger battery, necessitate plugging a vehicle into household circuit, need for frequent replacement of the catalytic converter.
Also see

Dictionary of automotive terms. 2015.

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