Pontiac Fiero 1984-1988 Repair Guide

Firing Orders

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Fig. Fig. 1 Four cylinder 2.5L engine-Distributor ignition Firing order: 1-3-4-2 Distributor rotation: Clockwise



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Fig. Fig. 2 Four cylinder 2.5L engine Direct Ignition System (DIS) Firing order: 1-3-4-2 Distributor rotation: Distributorless



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Fig. Fig. 3 Six cylinder 2.8L engine Firing order: 1-2-3-4-5-6 Distributor rotation: Clockwise

To avoid confusion, replace spark plugs and wires one at a time. Or tag them with masking tape.

 
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