Escort L4-122 2.0L SOHC (1997)
Purge Flow Sensor: Testing and Inspection
The technician should be aware that diagnosis and testing of the Evaporative Emissions (EVAP) Purge Flow (PF) sensor should begin at the Powertrain
Management System level, where testing begins with Diagnosis by Symptom, and is narrowed to testing of a "specific" subsystem and it's related wiring
and components. Following the appropriate diagnostic routines may prevent misdiagnosis and unnecessary component replacement. Refer to Powertrain
Management/Testing and Inspection/Procedures.
