I am going to pick up an analog fuel pressure gauge to install in the engine bay.

Where in the path/flow should such type of gauge be installed?

As the fuel comes up into the engine bay (ie before the first injector the fuels reaches at cylinder #3)? Or after the fuel pressure regulator?

After the fuel pressure regulator.

If you have a stock fuel-injected engine, the fuel pressure gauge should be "downstream" of the fuel pump, and "upstream" of the fuel pressure regulator.

An easy place to hook it in is to the unused fitting on your fuel rail. If you have one, at least. If not, you can hook it to the fuel hose that goes to your cold-start valve. (If your CSV only has one fuel hose hooked up to it, at least!)

You can also build a T from brass plumbing supplies, and put that in the middle of the hose across the back of the engine, or the hose from the left fuel rail to the pressure regulator, or from the fuel pump to the right fuel rail, or ....

You really do not want it "downstream" of the fuel pressure regulator, though.

--DD

please do NOT mount it on the motor
huge fire hazard...


mount it on the chassis where it is slightly isolated from the motor vibration by the motor mounts

Thanks for all the replies. Who has pics of their install of a fuel pressure gauge?

I'm think this will only be temporary, but somehow, those things always turn permanent.