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Service Data

WARNING: This page is about a different car, the 2009 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
SERVICE DATA SPECIFICATIONS - 1NZ-FE IGNITION

Spark plug Standard resistance 10 MΩ or more
Recommended spark plug SK16R 11 DENSO made
IFR5A 11 NGK made
Maximum electrode gap 1.3 mm (0.051 in.) for used spark plug
Electrode gap 1.0 to 1.1 mm (0.039 to 0.043 in.) for new spark plug