Pressure Test: Electrical
NOTE:
The following is only a general procedure. For specific manufacturers electric fuel pump testing procedures, see appropriate Fuel Injection article in this Section.
- 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.
- Hold pressure gauge about 16" (406 mm) above fuel pump. Pinch off fuel return line (if equipped). Start engine and observe pressure.
- After pressure check, reconnect steel line. If pressure is not within specifications or varies greatly, replace fuel pump.