Hall Ignition System Troubleshooting

Hall Ignition System Troubleshooting

Engine does not start or does not run properly

Starter speed normal
Fuel system OK

Note:
In isolated cases only, there may be trouble in Hall ignition system which cannot be traced with this troubleshooting program.
In such cases, try replacing Hall control unit or Hall generator

CAUTION: When working on vehicles with Hall ignition system, observe following precautions to prevent injury or damage to ignition system:

- Do not touch or remove high tension wire when running or cranking engine
- Disconnect ignition wires only when ignition is switched off
- Test instruments should be connected/disconnected only when ignition is switched off
- Do not connect any condenser to terminal 1
- Do not tow cars without disconnecting plugs on ignition control unit
- Do not crank engine until high tension wire of distributor cap (terminal 4) is connected to ground with jumper wire (example: compression check, etc.)
- Do not leave battery connected when electric welding on car
- Do not substitute rotor of ignition distributor with one of different type
- When installing suppressor, use only 1000 ohms for high tension wires and 1000 to 5000 ohms for spark plug connectors
- Do not wash engine when it is running
- Do not use battery booster longer than 1 minute nor exceed 16.5 volts with booster

Note:
Metal shavings or other debris between the ignition control unit and heat sink can cause stress which may damage internal circuits of the control unit:
When replacing ignition control unit, thoroughly clean heat sink before assembly.

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