Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
LH Side
- Connect the coupling harness and install the knock sensor using a claw-foot wrench.NOTE:
- Knock sensor must be positioned so that the connector center comes within the range shown in the figure.
- Make sure that the knock sensor and its connector do not touch the adjacent parts.
(a) Front of engine Tightening torque:
Calculation formula
T = 25 N.m (2.5 kgf-m, 18.4 ft-lb) x L1/(L1 + L2)
T: Reading of the torque wrench
L1: Effective length of the torque wrench
L2: Effective length of the crowfoot wrench
NOTE: If the effective length of the tool used is unknown, consult the manufacturer of the tool.(a) Effective length of the crowfoot wrench (L2) (b) Effective length of the torque wrench (L1) (c) Center of the open end of crowfoot wrench (d) Center of drive square of the torque wrench (e) Center of the position where a force is applied by hand - Install the clip (D) and clip (E), and connect the connector (C).
- Install the engine wiring harness stay.NOTE: Use the following formula to calculate the reading of a torque wrench when tightening with a crowfoot wrench.
Calculation formula
T = 19 N.m (1.9 kgf-m, 14.0 ft-lb) x L1/(L1 + L2)
T: Reading of the torque wrench
L1: Effective length of the torque wrench
L2: Effective length of the crowfoot wrench
NOTE: If the effective length of the tool used is unknown, consult the manufacturer of the tool.(a) Effective length of the crowfoot wrench (L2) (b) Effective length of the torque wrench (L1) (c) Center of the open end of crowfoot wrench (d) Center of drive square of the torque wrench (e) Center of the position where a force is applied by hand - Install the clip (B).
- Install the engine ground and the harness case.
Tightening torque:
19 N.m (1.9 kgf-m, 14.0 ft-lb)
- Connect the connector (A).
- Install the intake manifold assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>INTAKE MANIFOLD ASSEMBLY>INSTALLATION .
- Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO)>AIR INTAKE BOOT>INSTALLATION .
- Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.