420A Fuel pressure regulator and rail compatible?

[DSMJake]

Im getting a new OBX Fuel rail for my 98 eclipse rs for cheap (i know i know obx ive heard everyones comments on it already) and i need a fuel pressure regulator also and i want to know if this eBay Motors: New Universal Fuel Adjustable Pressure Regulator RED (item 250322196518 end time Nov-15-08 11:14:06 PST) regulator will work on this fuel rail eBay Motors: OBX Eclipse 95-99 2.0L RS GS 420A N-Turbo Fuel Rail RED (item 130267867256 end time Nov-16-08 00:34:51 PST)

thanks ahead of time.

 

[rstare]

The fpr doesn't attach to the fuel rail, it is positioned in the fuel return line. So, yes they will work together.
May I ask why you need an adjustable fpr?

 

[DSMJake]

My cars been running lean and a number of people told me to get a fuel rail and fuel pressure regulator and crank the fuel pressure up and it will fix it.

 

[rstare]

What mods do you have?
How do you know it's running lean? CEL?
I highly doubt that will fix your problem. Check your fuel pressure; there is a schrader valve on the passenger side of the fuel rail.

 

[DSMJake]

Only mods is a short ram air intake i havent updated my mods list the catback and cai is since then gone. And i was getting PO171 -- System adaptive fuel too lean bank 1.

 

[rstare]

Yea, that is what I figured....
I highly doubt changing to an adjustable fpr will help.
Like I said check the fuel pressure. It should be around 53psi.
Hook up a fuel pressure gauge to the test portl, its on the passenger side of the fuel rail.

 

[DSMJake]

How much was your underhood fuel pressure gauge?

 

[VelocitàPaola]

You can pick one up for $12.99 from Harbor Freight:

Harbor Freight Tools - Quality Tools at the Lowest Prices

It's not the highest quality gauge, it'll work. There's no need to spend more unless you plan on testing fuel systems frequently.

You might also check for vacuum leaks, clean your MAP sensor and look for exhaust leaks. If all else fails, replace the front oxygen sensor.

 

[DSMJake]

Already replaced the pre cat o2 sensor. thanks for the link theres one of those stores near my grandmas house.