Note:
– The fuel pressure sensor cannot be removed as a single unit. When replacing the fuel pressure sensor, replace it together with the fuel distributor as a single unit.
– A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.
–  Do not allow flammable objects such as the taping for bundling a wiring harness to come into contact with the exhaust manifold and silencer.

1. Disconnect the negative battery terminal.
2. Disconnect the AF sensor connector.
3. Remove the clip from heat insulator.
4. Remove the wirring harness from the wire clip A and B.

Relevant contents:

• Control system location, diagram, PCM and engine oil data reset [Skyactiv-G (with cylinder deactivation (e))]
• Revolution sensor, neutral sensor and engine coolant temperature (ETC) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Mass air flow (MAF) sensor/intake air temperature (IAT) sensor no.1, mass air flow (MAF) sensor, intake air temperature (IAT) sensor and manifold absolute pressure (MAP) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Barometric pressure (BARO) sensor, accelerator pedal position (APP) sensor and throttle position (TP) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Crankshaft position (CKP) sensor and camshaft position (CMP) sensor [Skyactiv-G (with cylinder deactivation (e))]
• Knock sensor (KS) and current sensor [Skyactiv-G (with cylinder deactivation (e))]
• Engine oil temperature sensor/engine oil pressure sensor and i-stop off switch [Skyactiv-G (with cylinder deactivation (e))]
• Clutch stroke sensor, power brake unit vacuum sensor and ion sensor [Skyactiv-G (with cylinder deactivation (e))]
• Engine oil level sensor, exhaust shutter valve position sensor and coolant control valve position sensor [Skyactiv-G (with cylinder deactivation (e))]