JB10 - Verify Scope Pattern 4

Spark Plug Firing Voltage Pattern:

- Is there consistently high spark plug firing voltage in one or more cylinders?

YES -- Spark plug wire(s) are not firmly connected. Disconnected spark plug wire(s). Wide spark plug gap(s). Open plug wire(s). CHECK spark plug wire(s) connection.

NO -- Go to JB11. JB11 - Verify Scope Pattern 5