1992 Toyota Corolla LEFACTORY OEM SERVICE PROCEDURE

Spark Test

NOTE: Before performing spark test, ensure ignitor is properly grounded.
  1. On Camry 2.2L, Celica 1.6L (4A-FE), Corolla, Paseo and Tercel models, disconnect spark plug wires. Remove spark plugs. Install spark plug on each spark plug wire. Ground spark plug against cylinder block.
  2. On all other models, disconnect high tension coil wire from distributor. Hold coil wire approximately 1/2" away from cylinder block.
    CAUTION: To prevent gasoline from being injected, DO NOT  crank engine for longer than 2 seconds.
  3. On all models, crank engine and check for spark. If spark does not occur, check ignition coil, ignitor and distributor connections.
  4. If connections are good, using ohmmeter, check resistance of high tension wires. Replace high tension wires if resistance is not within specification. See HIGH TENSION WIRE RESISTANCE  table. If resistance is within specification, proceed to step 5).
    HIGH TENSION WIRE RESISTANCE

    Application Maximum Ohms
    All Models 25,000 Per Wire
  5. Check voltage at ignition coil and ignitor. Turn ignition on. Ensure voltage exists at ignition coil positive terminal. If voltage exists, proceed to step 6). If voltage does not exist, check wiring between ignition switch, ignition coil and ignitor. See WIRING DIAGRAMS article in this section for wiring circuit.
  6. Check ignition coil resistance. See IGNITION COIL RESISTANCE  under IGNITION CHECKS. Replace ignition coil if resistance is not within specification. If coil resistance is within specification, proceed to step 7).
  7. Check pick-up coil resistance. See PICK-UP COIL RESISTANCE  under IGNITION CHECKS. Replace pick-up coil or distributor assembly if pick-up coil resistance is not within specification. If pick-up coil resistance is within specification, proceed to step 8).
  8. Check pick-up coil air gap. See PICK-UP COIL AIR GAP  under IGNITION CHECKS. If pick-up coil air gap is incorrect, replace distributor assembly. If air gap is correct, proceed to step 9).
  9. Check ignition IGT signal from ECU. See appropriate CODE 14 chart in appropriate TESTS W/CODES article in this section. If IGT signal is okay, replace ignitor.
Factory Service Tools

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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.

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