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.
Basic Inspection: Notes
Ensure following items are checked in order. Adjust as needed. Ensure no Diagnostic Trouble Codes (DTCs) exist before performing inspection. See SELF-DIAGNOSTICS - INTRODUCTION article. Ensure transmission is in Park or Neutral, all electrical accessories (headlights, A/C, rear window defogger, cooling fan, etc.) are turned off and steering wheel is in straight-ahead position.
- Preliminary Inspection. See PRELIMINARY INSPECTION .
- Check fast idle cam operation and adjustment (if applicable). See FAST IDLE CAM ADJUSTMENT .
- Check ignition timing. See IGNITION TIMING .
- Check base idle speed (if applicable). See IDLE SPEED .
- Check closed throttle position switch idle position. See CLOSED & WOT THROTTLE SWITCH INSPECTION .
- Reset TP sensor idle position memory. See TP SENSOR IDLE POSITION MEMORY .
- Check target idle speed. See IDLE SPEED .
- Check and erase DTCs. See SELF-DIAGNOSTICS - INTRODUCTION article.
Use the Manual With the Right Hardware
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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.
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