Pgm-Fi System: Component Locations Acura TL IV facelift

Special Tools Required

O2 Sensor Socket Wrench Snap-on SWR2 or O2 Sensor Wrench Snap-on YA8875, commercially available

Scheme 255

1. Raise the vehicle on a lift.
2. Disconnect the front secondary HO2S 4P connector (A), and remove the harness clamp (B).
3. Remove front secondary HO2S (C).
4. Install the parts in the reverse order of removal.

Scheme 256

Scheme 257

1. Disconnect the front secondary HO2S 4P connector (A), and remove the harness clamps (B) and the bolt (C).
2. Raise the vehicle on a lift.
3. Remove front secondary HO2S (A).
4. Install the parts in the reverse order of removal.

Scheme 258

1. Raise the vehicle on a lift.
2. Disconnect the rear secondary HO2S 4P connector (A), and remove the harness clamps (B).
3. Remove rear secondary HO2S (C).
4. Install the parts in the reverse order of removal.

Scheme 259

Scheme 260

1. Remove the timing belt (see «TIMING BELT REMOVAL»(ref-512349-S15248808482012103100000) ).
2. Remove the front camshaft pulley (CMP sensor pulse plate) (A).
3. Disconnect the CMP sensor connector (B), then remove the back cover (C).
4. Remove the CMP sensor (A) from the back cover.
5. Install the parts in the reverse order of removal. Install the timing belt (see «TIMING BELT INSTALLATION»(ref-512349-S18803631402012103100000) ).
6. Do the CKP pattern clear/CKP pattern learn procedure (see «CKP PATTERN CLEAR/CKP PATTERN LEARN»(ref-512356-S03681039362012103100000) ).

Scheme 261

1. Raise the vehicle on a lift. NOTE: Make the vehicle is level, because engine oil will drip out when you remove the sensor.
2. Remove the CKP sensor cover (A).
3. Disconnect the CKP sensor connector (B).
4. Remove the CKP sensor (C).
5. Install the parts in the reverse order of removal with a new O-ring (D).
6. Do the CKP pattern clear/CKP pattern learn procedure (see «CKP PATTERN CLEAR/CKP PATTERN LEARN»(ref-512356-S03681039362012103100000) ).
7. Check for engine oil level, and add more oil if needed.

Scheme 262

1. Remove the intake manifold (see «REMOVAL»(ref-512343-S15399114782012103100000) ).
2. Remove the injector base (see «INJECTOR BASE REMOVAL AND INSTALLATION»(ref-512343-S21317705902012103100000) ).
3. Disconnect the knock sensor connector (A).
4. Remove the knock sensor (B).
5. Install the parts in the reverse order of removal.