Originally Posted by
cossie_boi
same sort of problem i have. i have a spark the fuel pump is priming got no pulse / power to the injectors
help
thanks
dave
Do you have BOTH no pulse and no LIVE, the main power relay that feeds the LIVE to the injectors and the ecu's are fed from terminal 87 on the relay, 87a is a changeover relay marking, this extra 87a is not used by ford as not needed just the std 4 terminal switching relay, where on a relay a extra 87a terminal exists it is in the centre of the other four that around the edges, and so won't be connected as relay holder is designed/wired for a 4 pin relay.
On cossies the injectors are pulsed negatively by the ecu when in receipt of power and good crank signal, phase is only used when starting, if out of phase it will over fuel massively.
tabetha