Pinpoint Test HG: Positive Crankcase Ventilation (PCV) System: Introduction

This pinpoint test is intended to diagnose the following:

• positive crankcase ventilation (PCV) valve (6A666) and related vacuum lines
• crankcase pressure sensor (6758)
• PCM (12A650)

Fig 1: Identifying Crankcase Pressure Sensor Connector

Courtesy of FORD MOTOR CO.

Powertrain Control Module (PCM) Connector 

For PCM connector views or reference values, refer to REFERENCE VALUES .