Testing for Spark at Coil

WARNING: THE IGNITION SYSTEM GENERATES APPROXIMATELY 32,000 VOLTS. PERSONAL INJURY COULD RESULT FROM CONTACT WITH THIS SYSTEM.

CAUTION:
- Spark plug wire damage may occur it the spark plug is moved more than 114 Inch away from the engine ground.

- Do not leave any one spark plug cable disconnected any longer than necessary during test or possible heat damage to catalytic converter will occur. Total test time must not exceed 1 minute. Use a new spark plug and spark plug cable for the following test.

Testing For Spark:

1. Insert a new spark plug into the new spark plug boot. Ground the plug to the engine.
2. Remove distributor cap. Refer to Distributor Service and Repair.
3. Plug test spark plug cable onto coil tower.

Distributor Connections:

4. Crank engine and look for spark across the electrodes of the spark plug. If there is no spark, check the above image
- Continuity from PCM pin 11 to 6-way connector terminal 1
- Continuity between ground and 6-way connector terminal 2
- Continuity from PCM pin 6 to 2-way connector terminal 2
- Correct resistance in distributor cap, refer to Distributor Cap Resistance Test.

5. If all circuits show continuity, replace distributor assembly.