tokuzumi Posted September 17, 2021 Share Posted September 17, 2021 Had 3 issues recently, which I was pretty sure were fuel pressure regulator related 1) Fuel pressure at idle was only 20psi 2) Long cranking times, as fuel pressure needed to build 3) Fuel pressure drops to 0 immediately after shutting off the ignition Replaced the fuel pressure regulator with an Aeromotive one, as I couldn't find a stock style in stock. Got fuel pressure dialed in, and now the car cranks almost immediately after turning the key. But my inline fuel pressure gauge (in-line barb style with a threaded bung which has the gauge screwed into it) still shows 0 after shutting off the car. It could be the gauge only reads pressure when fuel is flowing...not sure. It's this one; https://zcardepot.com/collections/fuel-injection/products/fuel-pressure-gauge-fuel-injection-0-100-psi-280z-280zx?_pos=1&_sid=193df092d&_ss=r Is this normal, or do I have another issue elsewhere? I know my other cars will hold pressure after shutting off the vehicle, so I assumed the ZX would hold some pressure once the car is shut off. Quote Link to comment Share on other sites More sharing options...
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