PINPOINT TEST HD: Misfire Detection Monitor: Introduction

WARNING: Crown Victoria Police Interceptor vehicles equipped with fire suppression system, refer to FIRE SUPPRESSION SYSTEM article for Important Safety Warnings. Failure to follow these instructions may result in personal injury.

NOTE: Mechanical noise caused by the front end accessory drive components, mechanically driven cooling fans, or rough roads at high RPM with light load conditions may produce a nonsymmetrical loss of cylinder acceleration, which may result in a misfire.

This pinpoint test is intended to diagnose the misfire detection monitor.

Clearing the PCM DTCs erases any PCM recorded freeze frame data. Make sure to record any PCM freeze frame information before proceeding. Refer to FREEZE FRAME DATA .

Fig 1: Camshaft Position (CMP) Sensor Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Camshaft Position (CMP) Sensor Connector - B

Courtesy of FORD MOTOR CO.

Fig 3: Camshaft Position (CMP) Sensor Connector - C

Courtesy of FORD MOTOR CO.

Fig 4: Camshaft Position (CMP) Sensor Connector - D

Courtesy of FORD MOTOR CO.

Fig 5: Camshaft Position (CMP) Sensor Connector - E

Vehicle	Connector	Pin	Circuit
Edge, Expedition, F-150 4.6L, F-150 5.4L, Mark LT, MKX, MKZ, Navigator	A	2	CMP
Escape 2.3L, Focus, Mariner 2.3L, Ranger 2.3L	B	1 2	SIGRTN CMP
Explorer 4.0L, Explorer Sport Trac 4.0L, Mountaineer 4.0L, Mustang 4.0L, Ranger 4.0L	C	2 1	SIGRTN CMP
Fusion 2.3L, Milan 2.3L	D	3 2	SIGRTN CMP
Fusion 3.0L, Milan 3.0L	E	1	CMP
F-150 4.2L	D	2 3 1	CMP PWRGND VPWR
All other vehicles	A	1 2	SIGRTN CMP