Automobile Electrical and Electronic Systems, 5th Edition

Fuel control

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The actual values of these emissions varies depending on engine design, operating

conditions, temperature and smooth running, to name just a few variables.

Table 8.1 lists the four main emissions that are hazardous to health, together

with a short description of each.

8.2.3 Other sources of emissions

The main source of vehicle emissions is the exhaust, but other areas of the

vehicle must also come under scrutiny.

As well as sulphur in fuel, another area of contention between car

manufacturers and oil companies is the question of who should bear the

cost of collecting fuel vapour at lling stations. The issue of evaporative

fuel emissions ...