"How To" Build your own Fuel Pressure Meter

[cj]

I read the topic on Adjustable Fuel Pressure Regulator and since there was a question concerning the missing FP meter on the “second hand” regulators, I thought the following info might be of your interest.

This is a short “how to” on building a Fuel Pressure Meter (FPM). I already have my assembled (no single parts pics), but it’s a simple part to build, so assembled pics aren’t hard to understand.

Total spend - about 8 euros.

Parts needed:
Tightening bracket – 2 pieces
Liquid proof fuel hose (about 50 cm long)
Liquid meter (manometer)
Three way metal splitter (T-type)
Hose flange (adapter for the hose insertion) – 2 pieces

1 step: Insert the hose flanges into both opposite ends of the splitter.
2 step: Connect the fuel hose to one of the flanges and tighten it with the bracket.
3 step: Insert the second bracket on the loose end of the fuel hose – you will need it to secure the connection when installing the meter into the car.
4 step: Connect the Liquid meter with the middle free end of the splitter.

Pretty much that is the whole thing!

Now, inserting it into the car: (no detailed pics, sorry, I might do it sometime later)
1 step: Locate the Fuel Pressure regulator.
2 step: Find the fuel hose that goes into the fuel pressure regulator (on the down side)
3 step: Unplug the hose and plug it into the free hose flange of the FPM.
4 step: Plug the loose FPM hose into the fuel pressure regulator and tighten the bracket to ensure the connection.
5 step: You’re done installing! Now comes the hard part - Read and analyze!

a better suggestion:

Here is another “how to” that differs from the one described by the additional 1 m long liquid proof hose. The assembling is pretty much the same. This time do not connect the manometer directly to the metal splitter, but use the 1 m hose. The reason is that you will need to read the info from the meter while driving. Why while driving? Because the fuel pressure might differ at different engine rpms. When setting the fp you want it stable through the whole rpm band and that’s the way to be sure – extend the 1m hose with the manometer under the back of the hood and put it below the windshield wipers (facing the interior). Do your tests and when done, either disconnect the FPM from the car or secure the hoses in the engine bay.

Parts needed:
Mounting brackets – 4 pieces (2 more to tighten the 1m hose)
Liquid proof fuel hose (about 50 cm long)
Liquid proof fuel hose (about 1 m long)
Liquid meter (manometer)
Three way metal splitter
Hose flange – 3 pieces

Hope this helped!