Notes On Intermittents

If intermittent code "EO20" is stored, unplug oil pressure switch, start engine and allow to idle. Manipulate affected wiring, ensure the ECM P1 (A/B) connector is latched and check relay for proper installation into relay center socket. If fault is induced, engine will stall. Code "EO20" will set.

Fig 1: Hard or Intermittent Trouble Code EO20 - Open Fuel Pump Ckt

Fig 2: Hard or Intermittent Trouble Code EO20 - Open Fuel Pump Ckt (1 of 3)

Fig 3: Hard or Intermittent Trouble Code EO20 - Open Fuel Pump Ckt (2 of 3)

Fig 4: Hard or Intermittent Trouble Code EO20 - Open Fuel Pump Ckt (3 of 3)

Fig 5: Schematic for Hard Trouble Code E020