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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2011YARIS L4-1.5L (1NZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMSPARK PLUGSERVICE AND REPAIRINSTALLATION
2011 Toyota Yaris L4-1.5L (1NZ-FE)
Installation
2011 Toyota Yaris L4-1.5L (1NZ-FE)SECTION Installation
1NZ-FE IGNITION: IGNITION COIL AND SPARK PLUG: INSTALLATION
1. INSTALL SPARK PLUG
(a) Using a 14 mm spark plug wrench, install the 4 spark plugs.
Torque : 18 Nm (184 kgf-cm, 13 ft-lbf)
2. INSTALL IGNITION COIL NO. 1
(a) Install the 4 ignition coils with the 4 bolts.
Torque : 9.0 Nm (92 kgf-cm, 80 in-lbf)
(b) Connect the 4 ignition coil connectors.
3. INSTALL CYLINDER HEAD COVER NO. 2
(a) Tighten the 2 A nuts, then the 2 B nuts.
Torque : 7.0 Nm (71 kgf-cm, 62 in-lbf)
4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
Torque : 5.4 Nm (55 kgf-cm, 48 in-lbf)
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.