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.
Test Conditions
EGR failed in entire ignition cycle. Codes P013, P014, P015, P017, P021, P022, P024, P031, P032, P034, P042, P043, P044, P045 and P075 not set and 9.2 seconds have elapsed since closed loop fuel control was enabled. Coolant temperature 176-230°F (80-110°C), MAP between 50-80 kPa. Engine speed between 1250-1850 RPM and vehicle speed at 35 MPH or greater. Ignition voltage at 11 volts or greater, and 5 seconds prior to test EGR system at full, rear oxygen sensor toggles for 5 times per second and rear short term fuel trim is at 135 counts or less.
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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