How to carry out replacement: Spark Plug 1.0 (KGJ10_) Toyota IQ AJ1
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Change Toyota IQ AJ1 1.0 (KGJ10_) Spark Plug yourself – manuals and video tutorials

How to change spark plugs on TOYOTA iQ (_J1_) – replacement guide

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Download your free tutorial and fix TOYOTA iQ (_J1_) EV (KPJ10) problems yourself Download for free 1.06 MB Spark Plug for Toyota IQ AJ1 Shop now
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When to replace the Spark Plug on your TOYOTA IQ
Recommended replacement interval for the part category Spark plug : 90000 km
Important!
This replacement procedure can be used for:
TOYOTA iQ (_J1_) 1.33 (NGJ10_) … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Spark Plug for iQ (_J1_) and other TOYOTA models
How to change Spark plug on Toyota IQ AJ1 1.0 (KGJ10_) – step-by-step instructions for straightforward car repair Spark plug
How to change Spark plug on iQ (AJ10) – tips for proper car maintenance
Spark plug for iQ (AJ10) Petrol (98 hp)
Tools
Replacement: spark plugs – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Tools you'll need:
Electronic spray
High-temperature anti-seize lubricant
Drive socket # 10
Spark plug socket # 16
Ratchet wrench
Torque wrench
Fender cover
Buy tools
Replacement: spark plugs – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). Professionals recommend:
  • The replacement procedure is the same for all spark plugs.
  • Please note: all work on the car – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the bonnet.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    How to change Spark Plug on Toyota IQ AJ1 2008 - free PDF and video manuals
    Remove the engine cover.
  2. Step 4
    How to replace TOYOTA iQ (_J1_) 1.0 (KGJ10_) 2009 Spark Plug - step-by-step manuals and video guides
    Unplug the connectors from the ignition coils.
  3. Step 5
    Toyota IQ AJ1 1.4 D-4D (NUJ10_) 2010 Spark Plug replacement: free workshop manuals
    Clean the ignition coils.
  4. Step 6
    Changing Spark Plug on TOYOTA iQ (_J1_) EV (KPJ10) 2011 by yourself
    Unscrew the fasteners of the ignition coils. Use a drive socket #10. Use a ratchet wrench.
  5. Step 7
    How to remove TOYOTA IQ 1.0 (KGJ10_) 2012 Spark Plug - online easy-to-follow instructions
    Take out the ignition coils from the spark plug wells.
    Replacement: spark plugs – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). AUTODOC recommends:
    Remember the sequence of steps for ignition coil demounting.
  6. Step 8
    Clean dirt, dust and debris from inside the spark plug wells.
    Step 9
    How to replace Spark Plug on TOYOTA iQ (_J1_) 2013: download PDF manuals and video instructions
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  7. Step 10
    How hard is it to do yourself: Spark Plug replacement on Toyota IQ AJ1 1.33 (NGJ10_) 2014 - download illustrated guide
    Take out the spark plugs.
  8. Step 11
    Need to know how to renew Spark Plug on TOYOTA IQ 2015? This free workshop manual will help you to do it yourself
    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
  9. Step 12
    Changing of Spark Plug on Toyota IQ AJ1 2008 won't be an issue if you follow this illustrated step-by-step guide
    Install the new spark plugs into their mounting seats. Use the spark plug socket #16.
  10. Step 13
    TOYOTA IQ 1.0 (KGJ10_) Spark Plug replacement: online guides and video tutorials
    Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 20 nm torque.
    Replacement: spark plugs – TOYOTA IQ (KPJ1_, NGJ1_, KGJ1_, NUJ1_). AUTODOC experts recommend:
    Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
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