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 Circuit
The EGR vacuum control has an ECM controlled solenoid that pulses manifold vacuum to the EGR valve. The solenoid is always de-energized in Park, Neutral and at idle. The ECM monitors EGR effectiveness by de-energizing the EGR control solenoid, shutting off vacuum to the EGR valve. With EGR valve closed, block learn should be greater that it was during EGR operation.
An EGR valve that is stuck open will cause a rough idle. A plugged EGR solenoid vent could cause the EGR valve to remain open or to close slowly. An inoperative check valve in the ported signal line will result in faulty EGR system operation.
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.
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