Pinpoint Test HX: Evaporative Emission (EVAP) Monitor and System: Introduction: Notes

WARNING: This page is about a different variant/trim than selected.

WARNING: CROWN VICTORIA POLICE INTERCEPTOR VEHICLES EQUIPPED WITH FIRE SUPPRESSION SYSTEM, REFER TO FIRE SUPPRESSION SYSTEM FOR IMPORTANT SAFETY WARNINGS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

NOTE: Use this pinpoint test only when directed here.

The use of a soap solution around the fuel filler cap or the use of the hydrocarbon emission analyzer to determine an evaporative emission system leak is not recommended. The mandatory Rotunda Evaporative Emission System Leak Tester for OBD (including the ultra-sonic tester) and the Rotunda Vacutec 522 Leak Detector Smoke Machine are the only devices to be used at this time for evaporative emission system leak detection.

This pinpoint test is intended to diagnose the following:

Canister vent (CV) solenoid (9F945).
Fuel filler cap (9030).
Fuel tank pressure (FTP) sensor (9C052).
EVAP canister purge (EVAPCP) valve (9C915). Also known as the vapor management valve (VMV).
EVAP system leaks using the Rotunda Vacutec Leak Detector Smoke Machine.
Harness circuits: B+, CV, EVAPCP, FCIL, FLI, FTP, SIGRTN, VPWR, VREF and CASE GND.
Powertrain control module (PCM) (12A650).