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.
1978 Plymouth Arrow Base, Automatic TransFACTORY OEM SERVICE PROCEDURE
Electronic Lean Burn
- Description
- Operation
- Testing
- Ignition System Starting Test
- Failure To Start Test
- Poor Performance Tests
- Notes
- Run Pick-Up Coil Advance Timing Test (1976-77 Dual Pick-Up Distributor Models)
- Start Timer Advance Timing Test
- Speed Advance Schedule Test (1977-79 Single Pick-Up Distributor Models)
- Throttle Advance Schedule Test (1976-77 Dual Pick-Up Distributor Models)
- Throttle Advance Schedule Test (1977-79 Single Pick-Up Distributor Models)
- Poor Fuel Economy & Unusually High Idle Speed Tests
- Adjustments
- Wiring Diagrams
Factory Service Tools
Use the Manual With the Right Hardware
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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.