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P1284 Diagnostic Trouble Code Discussion for July 2004

Air Fuel Sensor (Bank 2 Sensor 1) Rich Shift Monitoring

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Trouble Ticket Help Requests for DTC P1284
Help Request Posted
1999 Ford Econoline Super Duty Custom 7.3L Surge, MIL Lamp on VIN: 1FDSS34F3W
P1284: Injection Pressure Regulator Failure - KOER Self-Test Aborted. hello ford power stroke tehc's this van is a ambulance, the problem is it surges at idle from aprox. 600 rpm to 850 rpm. the problem is very constant and predictable. the drivers complain that when sitting at a light when it jumps to its faster idle the van w...
July 21, 2004