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Chevy Equinox Generations Forum
3rd Gen : 2018-2024 Chevy Equinox
Chevy Equinox Audio & Electronics
I/M readiness
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<blockquote data-quote="Big Papi" data-source="post: 31901" data-attributes="member: 6910"><p><span style="font-size: 18px">It takes a bit more than just the passage of time to reset. See Below</span></p><p></p><p></p><p>To reset your I/M readiness monitors on a 2018 Chevy Equinox, ensure your fuel level is between 1/4 and 3/4. Start the car cold (engine off for at least 8 hours), idle for 3 minutes with the A/C and rear defroster on, then complete a 20-30 minute drive blending city, highway, and coasting maneuvers.</p><p>For a step-by-step breakdown of the GM drive cycle:</p><ul> <li data-xf-list-type="ul"><strong>Cold Start:</strong> Begin with the engine completely cold (coolant temperature below 50° F). Do not touch the accelerator for the first few seconds.</li> <li data-xf-list-type="ul"><strong>Idle & Load:</strong> Start the engine and let it idle for 3 minutes. Turn on the A/C and the rear defroster.</li> <li data-xf-list-type="ul"><strong>Steady Highway Cruise:</strong> Accelerate smoothly to 55-60 mph. Maintain a steady speed with light throttle for 5 minutes without using cruise control.</li> <li data-xf-list-type="ul"><strong>Deceleration (Coast Down):</strong> Let off the gas pedal completely to coast from 55 mph down to 20 mph. <strong>Do not</strong> touch the brake or the clutch during this coast.</li> <li data-xf-list-type="ul"><strong>Repeat & Monitor:</strong> Accelerate smoothly back up to 55-60 mph, hold for another 5 minutes, and coast down to 20 mph again. Repeat this cycle 3 to 5 times if the EVAP monitor is stubborn.</li> <li data-xf-list-type="ul"><strong>City Driving:</strong> Drive in 30-40 mph stop-and-go traffic for 5-10 minutes to finish setting the remaining catalyst and evaporative sensors.</li> </ul><p>Using a standard OBD2 Code Scanner to verify your monitor status before taking an emissions test is highly recommended.</p></blockquote><p></p>
[QUOTE="Big Papi, post: 31901, member: 6910"] [SIZE=5]It takes a bit more than just the passage of time to reset. See Below[/SIZE] To reset your I/M readiness monitors on a 2018 Chevy Equinox, ensure your fuel level is between 1/4 and 3/4. Start the car cold (engine off for at least 8 hours), idle for 3 minutes with the A/C and rear defroster on, then complete a 20-30 minute drive blending city, highway, and coasting maneuvers. For a step-by-step breakdown of the GM drive cycle: [LIST] [*][B]Cold Start:[/B] Begin with the engine completely cold (coolant temperature below 50° F). Do not touch the accelerator for the first few seconds. [*][B]Idle & Load:[/B] Start the engine and let it idle for 3 minutes. Turn on the A/C and the rear defroster. [*][B]Steady Highway Cruise:[/B] Accelerate smoothly to 55-60 mph. Maintain a steady speed with light throttle for 5 minutes without using cruise control. [*][B]Deceleration (Coast Down):[/B] Let off the gas pedal completely to coast from 55 mph down to 20 mph. [B]Do not[/B] touch the brake or the clutch during this coast. [*][B]Repeat & Monitor:[/B] Accelerate smoothly back up to 55-60 mph, hold for another 5 minutes, and coast down to 20 mph again. Repeat this cycle 3 to 5 times if the EVAP monitor is stubborn. [*][B]City Driving:[/B] Drive in 30-40 mph stop-and-go traffic for 5-10 minutes to finish setting the remaining catalyst and evaporative sensors. [/LIST] Using a standard OBD2 Code Scanner to verify your monitor status before taking an emissions test is highly recommended. [/QUOTE]
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Chevy Equinox Generations Forum
3rd Gen : 2018-2024 Chevy Equinox
Chevy Equinox Audio & Electronics
I/M readiness
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