Chesty Bonds said:
I hate all this computer technology s*** in the new cars. Get back to the real art of driving by using your brain and the regulation of an accelerator with you FOOT. Jeez, is that so much to ask these days???
my friend's 18 year old saab is just about as mechanical as it gets (without going back to the days of carbs & etc.)... mecahnicaly fuel injection (literally has a plate attached to a lever arm, the plate, sitting in the air intake, varies in position on how much air is being sucked in (rises & lowers), this then causes the lever arm to move a small plug up and down, this plug is like a faucet and varies how much fuel is sent into the engine via the fuel distributer (which consists of 7-8 fuel lines, one of which is a return to the fuel tank)... the fuel pump itself is a big sealed cylinder with a rotating mass, due to physics of liquid going from large area to constricted area, the roating mass causes the fuel to run down the line (there is also a return to tank here as well), the pump is turned on and off by a small electrical current run through the cylinder into a small electric motor that turns the rotating mass, if the car crashes (or etc.) then the current will stop and the fuel pump will forcibly stop the flow... there's actually arcing of electricity going through the fuel as it goes through the pump, but due to lack of oxygen, no fire... if the psi is too great (blockage) then all the returns will open up (due to pressure on spring-loaded plugs) and the motor will stop as well... not a single computer component involved with the process...