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Old 09-01-2022, 01:15 PM   #10
Board Member
Join Date: Dec 2016
Location: Boston MA

thanks for all the advice, i picked up a fuel pressure test kit and am struggling to figure out how to connect it to the rail. My car (a '92 wagon, LH2.4) does not have the Schrader valve on the fuel rail. I attempted to connect inline with the FPR, but couldn't read any pressure even with the car running. my next idea is to figure out the connector spec for the fuel supply line and make up something to put inline in front of the fuel rail

Does the diameter change of the fuel rail pipe in front of the FPR limit pressure? maybe I was wrong to think the FPR sees constant pressure at idle? does my cheap test kit without a relief button mean its airbound and i need to spend more money?

ive also now seen it no start/hard start on a full tank, so now im a little nervous about driving anywhere far from home.
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