Ignition System: Distributor

The Corolla 4A-C and 4A-F engines, as well all Tercel models, use Nippondenso Integrated Ignition Assembly (IIA) distributors. The Pickup and 4Runner 22R engine use Nippondenso electronic ignition, with conventional mechanical/vacuum advance mechanisms.

All other models are equipped with Nippondenso Electronic Spark Advance (ESA) distributors. Measure pick-up coil air gap with a non-magnetic feeler gauge. Move pick-up coil, if necessary, to correct air gap.

Fig 1: Firing Order & Distributor Rotation - Pickup & 4Runner

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Fig 2: Firing Order & Distributor Rotation - Van

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Fig 3: Firing Order & Distributor Rotation - MR2

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Fig 4: Firing Order & Distributor Rotation - All Other Models

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