fuel pressure question for 2000 outback 2.5L


Asked by Aug 07, 2014 at 05:54 PM about the 2000 Subaru Outback Base Wagon

Question type: Maintenance & Repair

2000 outback 2.5L. Fuel pressure at 37psi at idle with vacuum connected. Book calls for 30-34.Could higher fuel pressure be causing a lot of intermittent hesitation during acceleration?

3 Answers


No. Not that much out of spec. Matter of fact, http://www.justanswer.com/subaru/73rm1-subaru-forester-fuel-pressure-spec-2003.html ..says it can be 45. (Forester has same 2.5) Other forums say same. I don't know what book you have, and I am certainly not saying it is wrong, just letting you know what I found. Do you have a CEL on?

2 out of 2 people think this is helpful.

No CEL. Spec says 30-34 with vacuum connected. Should jump approx. 10 psi with vacuum unhooked. Mine does increase to 47psi with vacuum unhooked. Factory manual specs. Very bad intermittent hesitation when pulling out and also out on highway when accelerating

1 out of 1 people think this is helpful.

Yeah, I would be thinking the same thing with that hesitation, starving for fuel for a moment. But I'm stumped, hoped you would have a CEL that had thrown a code. Wish I was more help, best of luck

3 out of 3 people think this is helpful.

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