Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.

NOTE:

Circuit/System Verification must be performed before proceeding with Circuit/System Testing.

Verify the following conditions do not exist:
- B65 Intake Manifold Pressure and Air Temperature Sensor - Leaking @ O-Ring - Missing/Visible Damage
- B75C Multifunction Intake Air Sensor - Contamination of the measuring element / Cracked/Loose Clamps/Visible Damage/Water intrusion
- B111 Turbocharger Boost Sensor
  - Leaking @ O-Ring - Missing/Visible Damage
  - Restricted - Moisture/Ice
  - Skewed
- Q38 Throttle Body
  - Coking/Loose Clamps/Visible Damage
  - Restricted - Moisture/Ice
- Air Cleaner Element - Dirty/Restricted
- Catalytic Converter - Blocked/Restricted/Visible Damage
- Charge Air Cooler
  - Leaking/Incorrect connection
  - Restricted - Moisture/Ice
- Engine - Mechanical Condition - Refer to: Symptoms - Engine Mechanical
- Exhaust System - Leaking/Restricted/Visible Damage
- Intake Air Duct - Cracked/Loose Clamps/Restricted/Visible Damage
- Intake Manifold - Cracked/Loose Clamps/Restricted/Vacuum leak/Visible Damage
- Positive Crankcase Ventilation System
  - Leaking @ O-Ring - Missing/Visible Damage
  - Restricted - Moisture/Ice
  - Incorrect connection/Leaking/Restricted
- Vacuum Hoses - Kinked/Leaking/Incorrect connection/Restricted
- Vacuum leak @ Engine - Oil Level Indicator and Tube/Oil Filler Cap
- If a condition exists
  Repair or replace as necessary
- Go to next step: If no condition exists
Test or inspect for the following: - An engine mechanical condition
- If a condition exists
  Repair or replace as necessary
- Go to next step: If no condition exists
All OK.