LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2017 >> SS Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.2L (LS3) - Repair Instructions >> Repair Instructions >> Throttle Position Sensor Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

  1. Install Throttle Position Sensor - Throttle Position Sensor Installation
    2. Fig 1: Throttle Body Assembly
    GM4279401Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Align the tab of the gasket with the notch in the manifold.

  2. Install NEW Throttle Body Gasket (3)
  3. Install Throttle Body (2)
  4. Install Throttle Body Bolt (4) (Qty: 2) and hand tighten
  5. Install Throttle Body Nut (1) (Qty: 2) and hand tighten
    6. Fig 2: CPA Retainer, Engine Harness Electrical Connectors & Harness Clips
    GM1696893Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Verify that the electronic throttle control wiring harness connector seal is properly installed and NOT damaged.

  6. Connect the electronic throttle control wiring harness connector (3).
  7. Turn the ignition ON, with the engine OFF.
  8. Clear all DTCs with a scan tool.
  9. Observe the scan tool throttle position (TP) Sensor 1 and 2 Agree/Disagree parameter while slowly depressing the accelerator pedal to the wide open throttle position and then slowly returning the pedal to the closed throttle position. Repeat this procedure several times. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position and release pedal. Repeat the procedure several times. The TP Sensor 1 and 2 Agree/Disagree parameter should display Agree  .
    • If TP Sensor 1 and 2 Agree/Disagree parameter displays Agree  , proceed to Step 10.
    • If TP Sensor 1 and 2 Agree/Disagree parameter displays Disagree  , replace the throttle body assembly.
  10. Observe the engine control module (ECM) module DTC information. Are DTC P1516, P2101 and/or P2176 set?
    • If DTC P1516, P2101 and/or P2176 are set, replace the throttle body assembly.
    • If DTC P1516, P2101 and/or P2176 are not set, proceed to Step 11.
    11. Fig 3: Throttle Body Assembly
    GM4279401Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Do not use paints, lubricants, or corrosion inhibitors on fasteners, or fastener joint surfaces, unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems. When using fasteners that are threaded directly into plastic, use extreme care not to strip the mating plastic part(s). Use hand tools only, and do not use any kind of impact or power tools. Fastener should be hand tightened, fully seated, and not stripped.

  11. Tighten Throttle Body Bolt (4) (Qty: 2) to 10 N.m (89 lb in)
  12. Tighten Throttle Body Nut (1) (Qty: 2) to 10 N.m (89 lb in)
  13. Install Air Cleaner Outlet Duct - Air Cleaner Outlet Duct Replacement 
  14. Verify the battery voltage is more than 12 volts but less than 16 volts before proceeding with ECM reprogramming.
    15. NOTE:
    • During reprogramming, the battery voltage MUST be maintained within the proper range of 12-15 volts.
    • If the recommended tool below is NOT available, do NOT connect a battery charger to the vehicle. Connect a fully charged 12 volt jumper or booster pack that is disconnected from the AC voltage supply.
  15. Connect the EL-49642  SPS programming support tool to the vehicle.
  16. Reprogram the ECM. Service Programming System (SPS)
  17. Perform the throttle or idle learn. Throttle or Idle Learn 
scientia non olet · About LEMON Manuals