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Home >> Pontiac >> 1992 >> Firebird Formula, 5.7 8 >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Controls - Basic Testing) >> Basic Ignition System Checks (C4) >> HEI-Est Distributor >> Ignition Coil Power Source
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Ignition Coil Power Source

WARNING: This page does not describe the selected car, but rather 34 other vehicles, including the 1991 Pontiac Sunbird, 1991 Pontiac Grand Prix, 1991 Pontiac Grand Am, 1991 Pontiac Firebird, and 1991 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition on. Using voltmeter, check voltage between terminal "B" of ignition coil and ground on models with remote-mounted coil.
  2. On models equipped with integral ignition coil, check voltage between "BAT" terminal and ground at distributor. Battery voltage should exist. If not, check for open circuit, blown ignition fuse or defective ignition switch.
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