MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

HU: Intake Air Systems HU: Introduction

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 5,197 / 6,619HTML edition
← Chapter contentsProcedure contents

Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.

• Rotate the IMRC plate to fully open and to fully closed, contacting both limits.

• Check for restrictions during rotation.

Is a concern present?

Yes

No

REPAIR as necessary.

Clear the PCM DTCs. REPEAT the self-test.

GO to HU19 .

HU19 CHECK THE FUNCTIONALITY OF THE IMRC

WARNING: KEEP FINGERS CLEAR OF THE MECHANISM. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

Note: On vacuum operated systems the engine must run for 20 seconds to restore vacuum between state commands.

• Connect the IMRC linkage.

• Ignition ON, engine running.

• Access the PCM and monitor the IMRC1M (VOLT) and IMRC2M (VOLT) PIDs.

• Access the PCM and control the IMRC (MODE) PID.

• Command the IMRC PID to ON and then to OFF.

Do the IMRC1 and IMRC2 PIDs indicate full travel of the IMRC plates?

Yes

No

The concern is an intermittent.

GO to Pinpoint Test Z .

For DTCs P2008 or P2011, GO to HU20 .

For all others, GO to HU23 .

HU20 CHECK IMRC SOLENOID COIL FOR AN OPEN

• Ignition OFF.

• For DTC P2008,

• IMRC1 Solenoid connector disconnected.

• Measure the resistance between:

( + ) IMRC1 Solenoid Connector,

Component Side

( - ) IMRC1 Solenoid Connector, Component

Side

IMRC1A

VPWR

• For all others,

• IMRC2 Solenoid connector disconnected.

• Measure the resistance between:

( + ) IMRC2 Solenoid Connector,

Component Side

( - ) IMRC2 Solenoid Connector, Component

Side

IMRC2A - Pin 2

VPWR - Pin 1

Is the resistance between 22 - 26 ohms?

Source reference 5197

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.