For fuel pressure, you need a fuel pressure sensor, that is set up in the Generic sensor inputs, calibrated in KPA. Remember the sensor # you used. Set the lag factor low, like 15, which will help smooth out the reading.
Then go to the Fuel Pump and Pressure dialog under the Fuel Settings menu.
Turn on the Fuel Sensor Input by selecting the sensor # you used for the fuel pressure sensor (mine is sensor 6).
Below that, set the sensor type to "gauge", which is the typical style.
Now the ECU is monitoring fuel pressure, but we still have to set up the safety.
Setting up the Fuel Pressure safety...
Go to the Fuel Pressure Safety dialog under Fuel Settings
Set up the screen like this picture below as a starting point.
It will start monitoring over 150kpa (about 7psi boost), and 3000rpm. If fuel pressure drops more than 5psi from target, for more than 1 second, the safety is tripped.
Keep in mind that fuel pressure can pulse quite a bit on some setups, and you might need to install an orifice (.030-.050") at the pressure sensor to dampen the pulses, or it might trip the safety falsely.
What happens when the safety is tripped is dictated on the AFR Safety System dialog. See below.
I have the AFR Safety turned off in this example, as I just want you to focus on the part circled in red.
Those parameters are what happens when
any of the safeties are tripped (fuel psi, AFR, or oil pressure).
For the stock ignition, leave the spark kill at 0.0, since it won't work. It will work with other ignitions like the direct coilpack (truck), or coil per plug.
The other parameters show when to turn the fuel back on.
If you trip the fuel pressure safety, it will show up in a log under "CEL Status" as "8192".
Next post will be AFR Safety.