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Toyota Vios42 , vios93 , vios150 1nz plug coil, The Toyota Vios with the 1NZ-FE engine uses individual ignition coil-on-plug (COP) systems for each cylinder. Here’s a breakdown of the plug coil (ignition coil) for the 1NZ-FE engine:

Ignition Coil Description (Toyota Vios 1NZ-FE)

• Type: Coil-on-Plug (COP)

• Part location: Mounted directly on top of each spark plug (4 coils for the 4-cylinder engine)

• Function: Converts the battery’s low voltage (12V) to the high voltage (20,000 – 40,000+ volts) required to create a spark at the spark plug, igniting the air-fuel mixture.

• Wiring: Each coil has a connector with 3 wires:

1. Power Supply (B+) – usually 12V from the ignition or EFI system.

2. Ground (GND)

3. IGT (Ignition Trigger) – signal from the ECU to fire the coil.

• OEM Part Number (common): 90919-02240 (check exact match for your Vios year/model)

• Common Brands: Denso (OEM), NGK, Delphi, aftermarket brands