....so i tread on the gas pedal in my 355 and the butterflys open up allowing more air to be sucked into the combustion chamber...right?.... But how do the fuel injectors know to increase the rate of fuel being squirted in there? Sorry if this is a bit basic but i'm very interested to know how it all works
How a Fuel Injection ECU (Engine Control Unit) System Works - CarsDirect The throttle bodies have positions sensors on them also (potentiometer)
The Mass air flow sensor reads the amount of air going in, the ECU converts this into fuel timing for the injectors.
It's all done with strings and mirrors Modern engine management systems use combinations of sensors to detect airflow going into the engine (MAF), air temperature going into the engine (MAT), throttle position, engine speed, fuel ratio (oxygen/lambda sensors in exhaust system), engine "knocking", atmospheric pressures, etc. The ECU has memory tables which know the ideal settings for various conditions and adusts the fuel accordingly with the fuel injectors.
Right That's the part i needed to know. This is how the ecu knows how much air is entering the system Thanks to all Clever stuff
I hear they only allow carb'd jeeps in Jurassic park to keep it as realistic as possible Funny enough, I started working on (tinkering at best) the fuel injection system on a newer jeep I had a few years ago. I did not get very far but it was a clinic in how remarkably advanced these current systems are. You get a quick understanding of why you never change spark plugs in new cars anymore
