Ford Workshop Service and Repair Manuals

The 2.3L Duratec-HE (MI4) engine is essentially based on the 2.0L Duratec-HE (MI4) already used in the Focus C-MAX 2003.75 and 2004.75 Focus.

Key features of the engine include:

• Longitudinally installed four-cylinder in-line engine with two chain-driven overhead camshafts and 16 valves
• Aluminum cylinder block with lower crankcase
• Mechanical bucket tappets
• Intake manifold switching system with swirl valves
• Ignition system with ignition coil-on-plug
• Electronic throttle valve
• Balance shafts

Engine management

• Visteon powertrain control module (PCM)
• Knock control with one knock sensor (KS)

Engine-emission control

• Meets European emission standard IV
• European on-board diagnosis (EOBD) for the monitoring of emissions-relevant components.

Diagnosis

• Diagnosis is performed via the data link connector (DLC) by means of the Worldwide Diagnosis System (WDS).

Power and torque curve (when using 95 RON fuel)

Service note:

The valve clearance of the engine only needs to be monitored if the engine is converted to operation using alternative fuel (every 60,000 km).

Conversion of the engine to operation with alternative fuel requires no modification to the engine as the valve seats are reinforced as standard. All that is required is an adaptation of the fuel system.

The service interval is 20,000 km or 1 year.