2007 Chevrolet Optra LS, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Learn: Notes

Procedures 1 and 2 listed below needs to be performed whenever the following occurs:

  • The battery cables are disconnected.
  • The ECM is disconnected or replaced.
  • The fuse that supplies ignition 1 or battery positive voltage to the ECM is removed.
  • The IAC valve is removed or replaced.
  • There is an IAC system fault.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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