I was just looking for some opinions on an idea I was thinking about. I've sort of wanted to add an electronic fuel pressure sensor up to the fuel rail so that I can see what the pressure is at any time without having to hook a gauge up. I've got three main questions:

1. Are there any reasonably prices sensors that you've used which work well?

2. Would it be possible to hook it up to the oil pressure gauge in the dash with some sort of switch? I could build a board to convert from the fuel pressure's voltage range to the oil pressure gauge's voltage range if needed, but I don't know if there's anything else hooked up to the same line as the gauge that would start acting funny.

3. Are there any extra inputs on the 730 ECM which I could feed in the fuel pressure voltage so that I can log it with TunerPro? (This question might actually be better for the DIY Prom forum).

I don't want to have an external gauge cluttering up the interior, which is why I want to take advantage of the oil pressure gauge. I'd normally just keep it on oil pressure, but it'd be nice to switch over to fuel pressure at a whim.