Escape 2WD L4-122 2.0L DOHC VIN B Zetec SFI (2003)
P1120 - P1124: Testing and Inspection
P1121
For diagnosis of code P1121 refer to chart
P072x - P1132
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