Engine

Removal

~1min read
1special tools

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

2. REMOVE AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1)

REMOVE AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1)

(a) Disconnect the sensor connector.

(b) Using SST, remove the sensor from the exhaust manifold.

SST 09224-00010

3. REMOVE FRONT EXHAUST PIPE ASSEMBLY

REMOVE FRONT EXHAUST PIPE ASSEMBLY

(a) Disconnect the heated oxygen sensor (for Bank 1 Sensor 2) connector under the center console.

(b) Remove the 2 bolts and 2 compression springs.

(c) Remove the 6 nuts and front exhaust pipe assembly.

REMOVE FRONT EXHAUST PIPE ASSEMBLY

4. REMOVE EXHAUST MANIFOLD RH

REMOVE EXHAUST MANIFOLD RH

(a) Remove the nut, bolt and exhaust manifold stay.

(b) Disconnect the air fuel ratio sensor (for Bank 1 Sensor 1) connector.

REMOVE EXHAUST MANIFOLD RH

(c) Remove the 6 nuts and exhaust manifold RH.

(d) Remove the gasket and exhaust manifold to head gasket.

5. REMOVE AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)

REMOVE AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)

(a) Using SST, remove the sensor.

SST 09224-00010

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.