Ford Fiesta: Evaporative Emissions - 1.6L EcoBoost (132kW/180PS) – Sigma / Evaporative Emission System Leak Test. General Procedures
Activation
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Disconnect the vapor tube-to-EVAP canister purge valve quick connect coupling (engine side).
Refer to: Quick Release Coupling (310-00B Fuel System - General
Information - 1.6L EcoBoost (132kW/180PS) – Sigma, General Procedures).
-
Connect the VACUTEC Smoke Machine Fuel Evaporative Emission Tester to
the EVAP canister purge valve fitting. Refer to the manufacturer's
instructions.
-
Connect the scan tool and open the EVAP canister purge valve.
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Using the scan tool, close the EVAP canister vent solenoid. Refer to the manufacturer's instructions.
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Using the VACUTEC Smoke Machine Fuel Evaporative Emission Tester, pressurize the EVAP system.
-
Monitor the indicator flag on the VACUTEC Smoke Machine
Fuel Evaporative Emission Tester. If the measurement is below the
indicator flag, the system has passed the leak test and the test
procedure is complete. If the measurement is above the indicator flag,
the system has failed the leak test. If the leak test has failed,
proceed to next step.
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Introduce smoke from the VACUTEC Smoke Machine Fuel Evaporative
Emission Tester into the EVAP system. Refer to the manufacturer's
instructions.
-
Use the halogen light provided with the VACUTEC Smoke
Machine Fuel Evaporative Emission Tester to look for smoke coming from
the EVAP system. This would indicate a leak point.
-
Repair any leaks as necessary.
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Repeat the leak test until the system passes.
Engine Diagnostic Information
Diagnostics
in this manual assume a certain skill level and knowledge of
Ford-specific diagnostic practices. For information about these,REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
With the vehicle in NEUTRAL, position it on a hoist...
Other information:
Body
The body consists of the following:
Four-door sedan
Five-door hatchback
High-Strength Low Alloy (HSLA), ultra high-strength steel (UHSS) and mild steels
Roof outer panel constructed of mild steel
Steel hood
Steel luggage compartment lid
Body side outer panels constructed of mild steel
Dual-phase steel (DP) in select body struct..
Overview
Multiplexing
is a method of sending 2 or more signals simultaneously over a single
circuit. Multiplexing allows 2 or more electronic modules (nodes) to
communicate over a twisted wire pair [data (+) and data (-)] network.
The information or messages that can be communicated on these wires
consists of commands, status or data. The advantage of using
multiplexing is to reduce ..
Categories
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the floor console.
Refer to: Floor Console (501-12 Instrument Panel and Console, Removal and Installation).
Remove the driver seat.
Refer to: Front Seat (501-10 Seating, Removal and Installation).
Remove the parking brake cable adjustment lock nut.

Loosen the parking brake cable adjustment nut.
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