Automotive Technology: A Systems A...
Solutions
Automotive Technology: A Systems A...
List five common causes for high HC emissions.
The possible causes of high HC emission from engine exhaust.
The performance of an engine can be demonstrated by the amount of HC and CO emissions. Unburned hydrocarbons are usually, vapours of gasoline that have not been burned during combustion. There are certain conditions that can cause higher emission of HC from engine exhaust. Some of them are:
- Incorrect ignition timing:
- Lean air-fuel ratio:
If there is any variation in the timing of ignition occurs in the engine then this variation cause failure in the function of smog checker which in turns increase the level of emission of HC.
If less amount of fuel entered into the combustion chamber then this will also raise the emissions of HC...
Chapter 34 Solutions
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