Chevy Impala and Full-Size Cars 1979-89 TBI Repair Guide
Access our free Throttle Body Injection (TBI) Repair Guide for Chevrolet Full Size Cars 1979-1989 through AutoZone Rewards. These diagrams include:
- Fig. 1 For access to the idle stop screw, pierce the cap with an awl and carefully pry the cap from the side of the throttle body
- Add your vehicle in Manage My Vehicles.
- Enter your vehicle details.
- Click the “View More” button, and then click “Vehicle Repair Guides.”
- Select the chapter “Throttle Body Injection (TBI) Repair Guide”.
Access our Chevrolet Full Size Cars 1979-1989Throttle Body Injection (TBI) Repair GuideMinimum Idle Speed Adjustment by creating an account or signing into your AutoZone Rewards account. Once you sign in, follow these instructions to access our Repair Guides.