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Home >> Ford >> 1990 >> LTD Crown Victoria S, 5.8 G >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.8L >> Code-To-Component Applications Menu

Code-To-Component Applications Menu

MCU DIAGNOSTIC TEST CODE-TO-COMPONENT APPLICATIONS

Code System Component
12 Idle Speed Incorrect
25 Knock Detection System
41 Lean Fuel Mixture
42 Rich Fuel Mixture
44 Thermactor System
45 Thermactor Air Diverter
46 Thermactor Air By-Pass
51 & 55 Zone Vacuum Switch Open
53 & 54 Temperature Switch Open
65 Zone Vacuum Switch Closed