Open Road

Hey Gents.
Can anybody help me with the specs on the fuel rail pressure port.
IE, size and thread specs, for fittings to hook up pressure sensor for diagnostics. Or potential sources for said fittings.

I don’t think there’s anything off the self from our vendors anymore, probably with good reason ;)

The cap is an M12x1.5

SeanR wrote: ↑Wed Jun 02, 2021 12:34 pm The cap is an M12x1.5

Thanks Boss, hope you are doing well.
I’m messing around with the adjustable FMU.
It’s pig rich at boost.

If the FMU is working correctly, and I may be wrong here, if you have it set up properly at idle it should work as designed at boost. I've seen a couple of them that were total junk and once replaced with new or replaced with some shark tuning things worked out. Good luck man.

You are not wrong ;)

Went back and discovered, ie read the instructions, that the vacuum signal line needs to be disconnected to the FMU while dialing it in at idle.

Crumpler wrote: ↑Wed Jun 02, 2021 6:35 pm You are not wrong ;)

Went back and discovered, ie read the instructions, that the vacuum signal line needs to be disconnected to the FMU while dialing it in at idle.

That is going to make a huge difference. You are on the right path now.

Just FYI, Autoban88 has a fitting female to female M12 1.5. Best I could do with that was a male M12 to 1/4 inch hose barb to run to a fuel pressure sensor for garage testing.