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Message: <blockquote data-quote="Notthenow" data-source="post: 1494141" data-attributes="member: 23871">I think Iwarrior was referring to just a fuel pressure test gauge. You don't need a full blown interior fuel pressure gauge. Check it idling and revving by opening the throttle. Look for pressure drop. Then shut off and watch. If it makes 39psi and holds it after shut off the pump and check valve are good. Cars that stall when hot due to fuel are suffering from vapor lock because there is low pump pressure. Last, yes you could have hot relay cutout, but low pressure is the most likely. Always check pressure first before going down the rabbit hole IMO.</blockquote>