what are the basics of mechanical injection, trying to learn the basics and what does what Options

[thelogo]

(IMG:style_emoticons/default/piratenanner.gif)

[Dave_Darling]

All of the electronics are different. The D-jet uses all analog signals, while many of the inputs to and outputs from the modern EFI are digital.

Most modern systems physically measure the amount of air coming into the intake to determine how much fuel the engine needs. There will be a MAF (Mass Air-Flow) sensor of one kind or another.

D-jet uses manifold air pressure (MAP) to determine how much of a load the engine is under and therefore how much fuel it needs. There are modern MAP-based systems (Honda used them for years and years) but the D-jet sensor is an interesting analog device that varies the inductive coupling between two coils of wire, instead of a digital device that provides a changing voltage with pressure changes.

--DD