JB11 - Verify Scope Pattern 5

Spark Plug Firing Voltage Pattern:

- Is there consistently low spark plug firing voltage or sloping spark line in one or more cylinders?

YES -- Fouled spark plug(s). Narrow spark plug gap(s). Spark plug wire(s) grounding on engine. INSPECT for damage.

NO -- Ignition Secondary functioning properly. Go to Pinpoint Test Step HD8 for fuel injector and pressure test. HD8 - Check Resistance of Injector(s) and Harness