Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Electronic Control Unit
There are 6 wires leading from the control unit, 2 to one connector and 4 to the other. The white wire and red wire leading to the 2-wire connector are the ignition feed circuits - the white wire for cranking, the red wire after the engine is running. The control unit uses the green wire to turn power to the ignition coil off and on. The orange and violet wires are used to transmit signals from the distributor's sensor to the control unit. The black wire supplies the distributor ground circuit.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.