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Eclipse 2.0L Non-Turbo

WARNING: Before disconnecting high pressure fuel hose at fuel delivery pipe, cover fuel hose connection with a rag. Some residual fuel pressure may still be in system.
  1. Relieve fuel pressure. See RELIEVING FUEL PRESSURE . Connect fuel pressure gauge to fuel rail service port.
  2. Turn ignition on (engine off). Use scan tool to operate fuel pump. Check fuel pressure. See FUEL PUMP PERFORMANCE  table. If fuel pressure is too low, check for clogged fuel filter, pressure regulator leaking or low fuel pump delivery pressure. If fuel pressure is too high, check for bad fuel pressure regulator or clogged fuel return hose.
  3. Repeat fuel system test. Check fuel pressure. Turn ignition off. Wait 2 minutes, then check pressure. If pressure drops sharply after ignition is turned off, check for fuel pump check valve stuck open. If fuel pressure drops gradually after ignition is turned off, check for leaky injector or bad pressure regulator.
  4. When fuel pressure test is complete, repeat fuel pressure release procedure before disconnecting fuel pressure gauge. Make sure fuel does not leak from service port. Reinstall protective cover.
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