The TJ system is purely mechanical and has low pressure non-sequental injectors. In that respect it is like the Hilborn systems but it is far more sophisticated as it was designed for production cars.
It has two pumps, a low pressure electric one to give basic pressure, and a engine-driven mechanical one to actually inject. The pump and control box have some clever valving to ensue the system is primed for starting and held at constant presure regardless of output. The control cam is throtle cable operated but includes a choke or start device.
IIRC There ar some basic mixture problems due to lack of barometric compensation and the pump output may be geomertic and not linear to revs as I think it is centrifugal.
It was used by Lotus on the Ford 289 V-8's and Lotus even installed to dyno cell to run the V-8's on TJ.
It never make it onto a production cra and was changed to electronic control but to late to avid being steam rollered by Bosch.
Edited by mariner, 02 February 2017 - 11:47.