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Pressure Test: Electrical

  1. Disconnect fuel line from injector inlet "T". Install a "T" connector with a pressure gauge in the line and reconnect line to injector. Some models are equipped with a fitting which allows pressure test without disconnecting fuel lines.
  2. Hold pressure gauge about 16" (406 mm) above fuel pump. Pinch off fuel return line (if equipped). Start engine and observe pressure.
  3. After pressure check, reconnect steel line. If pressure is not within specifications or varies greatly, replace fuel pump.
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