torean

ok....previously i removed my emissions and decided to move all the unneeded emissions related wires from my engine harness...one of these wires happens to be the fuel pressure solenoid thats on the vac rack....its the orange plug...and i didnt realize i needed this to keep my fuel pressure stable when the engine is heat soaked......it goes to one of the 2 yellow plugs inside the car....i dont know which plugs to put back the connectors onto...please help

NZConvertible

All you need is a wire from ECU pin 2M to the solenoid, plus switched ignition to the solenoid's other pin. Note that for the hot-start assist system to work properly the solenois is wired in parallel with the ASV. See the wring diagram in the FSM, page 50-25.

torean

problem is that i removed the ASV also.........

RETed

Don't even bother with it.
Supposedly, on hot starts, it vents the FPR vacuum reference to atmosphere, so it sees approximately 40psi of fuel pressure on cranking.
The higher fuel pressure is supposed to combat vaporization of the fuel in the (hot) fuel rails.
In actuality, this causes more headaches than solves.
On engines with marginal compression or intake leaks, it causes a hot flood...

Throw away the solenoid and hook the FPR vacuum reference to a vacuum source after the throttle body.


-Ted