Diagnostic Aids

Perform this test when instructed during QUICK TEST or if directed by other test procedures. Only use this test to diagnose:

• Ignition System
• Fuel Injectors
• Fuel Pressure
• Engine Vacuum System
• Evaporative Emission System
• Fuel Vapor Storage Canister
• EVAP Canister Purge Solenoid
• Engine Mechanical Concern
• Crankshaft Position (CKP) Sensor
• Crankshaft Pulse Wheel
• Powertrain Control Module (PCM)