How much do the modern emissions equipment save in fumes? I had a crank sensor replaced, and it failed in 2 days. I had another one fitted, and it has been fine for about a year now. I got thinking, how much does it harm the environment to manfacture all the modern trappings of a modern injection engine, as opposed to the fuel efficiency / emmissions savings over a carburetor? Catalytic convertors were brought in as law because they were "sold" as reducing pollutants in traffic. They do no such thing. In standing traffic, they cool down too much, and stop working, so have no effect on pollution in towns and cities! Also, people go on about solar power... A solar cell uses more energy in its manufacture than it generates in it's lifetime. Hardly the way forwards. Bob
Many of the sensors are used to enable more efficient running of the engine, rather than to reduce pollutants. There is a new generation of cats coming soon, which promise more efficiency, however, if yours cools down to quick, it is either poor design, or faulty. Concerning future fuels, the new hydrogen driven cars seem to be gaining a foothold, with Honda at the forefront of developing this new generation of water powered vehicles. Yes, I did say water. It involves using a platinum catalyser to separate the hydrogen from the oxygen, and using the hydrogen as a fuel. More info can be gained by an internet search. regards.