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.
Code 32, EGR System Error
Code 32 represents an EGR flow test error. During a closed throttle coast-down, ECM will cycle 3 internal EGR valve solenoids on and off individually while monitoring for changes in engine RPM and oxygen (O2) sensor activity.
- This test determine if power to EGR valve exists.
- This test will determine if an open circuit exists in EGR wiring or if EGR valve is at fault.
- This test will determine if a short to ground exists in any circuit going to EGR valve or if ECM is at fault.
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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