Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
This test is performed when directed here from one of the following symptoms in TROUBLE SHOOTING - NO CODES - EEC-V - GASOLINE & NGV article:
- Rough Or Rolling Idle, Stalls, Misses, Hesitation Or Surge
- Hard Start/Long Crank Or Erratic Start/Crank
- Slow Return To Idle
- Spark Knock
- Poor Fuel Economy
- High Oil Consumption
- Exhaust Smoke
Use this test to diagnose Positive Crankcase Ventilation (PCV) valve and related vacuum hoses.