Amplifier Module Test
- Disconnect distributor harness connector from amplifier module "W" and "G" terminals. Disconnect the high tension lead from distributor cap. Turn ignition on.
- Hold high tension lead with a pair of electrician's pliers and position it 1/4" from good engine ground. The ground should be as far from the coil and amplifier module assembly as possible.
- Use a jumper wire to feed terminal "G" of amplifier module with successive impulses from battery positive terminal. At each impulse, a spark should jump the gap to ground. If not, repeat same test with a new amplifier module. If spark now jumps gap, install new module.