I will soon be troubleshooting a 2000 F-150 with a 5.4. I have an AE scan tool that i've been learning on my diesel, and since i have it why not put it to use on the 150. So my question is, is this manual specific to a propane engine? Or is it for both? This is the only powertrain/emissions diagnostics manual i can find for the 5.4.