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420A Fuel pressure regulator and rail compatible?

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DSMJake

10+ Year Contributor
88
0
Jul 24, 2008
Havre De Grace, Maryland
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.
 
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.
 
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.
 
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