Section 3499 (Engine Controls - Pinpoint Test HK: Variable Camshaft Timing (VCT) Through Pinpoint Test KA: Fuel Pump (FP) Relay - (Except Diesel & Hybrid)): c: Introduction

Using a soap solution around the fuel filler cap or capless fuel tank filler pipe (if equipped) or using the hydrocarbon emission analyzer to determine an evaporative emission system leak is not recommended. The mandatory Rotunda Evaporative Emission System Leak Tester for On Board Diagnostic (OBD) (including the ultrasonic tester) and the Rotunda Smoke Machine, Fuel Evaporative Emission System Tester 218-00001 or equivalent are the only devices to be used at this time for evaporative emission system leak detection.

When using the Rotunda Smoke Machine, Fuel Evaporative Emission System Tester 218-00001 or equivalent, the fuel level in the fuel tank must be less than 85% full.

This pinpoint test is intended to diagnose the following:

• EVAP canister vent valve (9F945)
• fuel filler cap (9030)
• capless fuel tank filler pipe (9034)
• fuel tank pressure (FTP) sensor (9C052)
• EVAP purge valve (9C915)
• EVAP check valve
• EVAP ejector
• EVAP system leaks using the Rotunda Smoke Machine, Fuel Evaporative Emission System Tester 218-00001
• harness circuits: B+, CANV, EVAPCP, FTP, FTPREF, SIGRTN, VPWR and VREF
• powertrain control module (PCM) (12A650)

For additional information on the EVAP system, refer to EVAPORATIVE EMISSION (EVAP) SYSTEMS , or the appropriate Evaporative Emissions article.

EVAP Canister Vent Valve Connector 

For applications using the engine off natural vacuum (EONV) EVAP leak check monitor, KAPWR provides voltage to the EVAP canister vent valve instead of VPWR.

Fig 1: Identifying EVAP Canister Vent Valve Connector

Courtesy of FORD MOTOR CO.

Fig 2: Identifying EVAP Purge Valve Connector

Courtesy of FORD MOTOR CO.

Fig 3: Identifying Fuel Tank Pressure (FTP) Sensor Connector

Courtesy of FORD MOTOR CO.

Powertrain Control Module (PCM) Connector 

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