1982 Mazda 626 L4-2000 1970ccFACTORY OEM SERVICE PROCEDURE

Testing for Spark



CAUTION: Do not crank engine, if there is spark, for a prolonged period of time. Damage to H.E.I. electrical components may occur.
1. Disconnect the coil wire from the distributor.
2. Hold it with insulated pliers approximately 5-10 mm (1/4-7/16 in) from ground.
3. Crank engine and check that a strong blue spark is visible.
4. If there is no spark, check the ignition coil circuit, pick-up coil circuit, and high tension lead.
5. If there is spark, reconnect the coil wire to the distributor and remove the No. 1 spark plug wire lead.
6. Crank engine and again check that a strong blue spark is visible.
7. If there is no spark, check the distributor cap, rotor, and high tension leads.

Factory Service Tools

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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.