Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Idle Speed Fluctuates (MIL Works OK, No DTCs Set)
2011 Acura TL FWD V6-3.5LSECTION Idle Speed Fluctuates (MIL Works OK, No DTCs Set)
Idle speed fluctuates (MIL works OK, no DTCs set)
Idle speed fluctuates
(MIL works OK, no DTCs set)
Do the ECM/PCM idle learn procedure ECM/PCM Idle Learn Procedure.
Check the idle speed Testing and Inspection.
Do the carbon accumulation check.
Troubleshoot the A/C signal circuit A/C Signal Circuit Troubleshooting.
Also check for
Incorrect valve timing or clearance adjustment
Also check for
Intake air leaks
RENDER: 1.0x
NO RELATED
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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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.