F 150 Super Crew 4WD V8-5.4L Prop SOHC VIN Z (2003)
P0120 - P0124: Testing and Inspection
P0121
For diagnosis of code P0121 refer to chart
P0116 - P0152
If there is no link in the chart then:
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This code is not a valid code for this vehicle
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Or information published by the manufacturer for this vehicle did not include this code
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