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.
Exhaust Gas RECIRCULATION (EGR) Control
To lower exhaust gas nitrogen oxide emissions, an exhaust gas recirculation system is incorporated within the ECCS. This is accomplished by returning some exhaust gas from the exhaust manifold to intake manifold and then the combustion chamber to be reburned. This is controlled through the EGR valve and EGR control solenoid.
Under some or all of the following conditions the EGR system does not operate: engine starting, throttle valve switch on, under heavy load, low engine temperature, high engine temperature and high engine speeds. Except under the previously named conditions, when the ECU signals the EGR control solenoid, it energizes the coil within the solenoid which pulls the plunger downward and shuts off the vacuum signal to the EGR valve.
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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