LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2008 >> Optra5 LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L (Diesel) >> Repair Instructions >> Fuel Injector Flow Rate Programming >> ECM-IMA Diesel Injector Replacement (IQA) Programming
April 5, 2026: LEMON Manuals is launched! Read the announcement.

ECM-IMA Diesel Injector Replacement (IQA) Programming

Fig 1: Identifying Injector Code
GM1969611Courtesy of GENERAL MOTORS CORP.
  1. Ignition OFF.
  2. Record all the IQA codes from the corresponding cylinder from each injector that is being replaced or from all injectors if the ECM was replaced.
  3. From the scan main menu, select service programming system, then follow the instructions on the screen.
  4. Enter the 7 digit IQA code (2) from the injector or injectors (1).