G20 L4-20L (SR20DE) Fuel Pressure System Diagnosis - Without CONSULT Scan Tool - Page 1505
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restrictions prior to replacing fuel pressure regulator. If fuel pressure stays constantly low, check fuel filter for restrictions.
Notes:
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When reconnecting fuel line, always use new clamps.
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Make sure that clamp screw does not contact adjacent parts.
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Use a torque driver to tighten clamps.
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Use a Pressure Gauge to check fuel pressure.
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Do not perform fuel pressure check while fuel pressure regulator control system is operating; otherwise, fuel pressure gauge might indicate
incorrect reading.
