How to Deal with Low Idle Speed After Power Failure in Camry?
3 Answers
The methods to deal with low idle speed after power failure in Camry are: rematch the throttle, clean the fuel injectors, and then check the spark plug gap and combustion condition. Taking the Camry 2021 2.5G Luxury Edition as an example: it is a mid-size 4-door 5-seater sedan under GAC Toyota, with a length, width, and height of 4885mm, 1840mm, and 1455mm respectively, a wheelbase of 2825mm, and equipped with an 8-speed automatic transmission. The Camry 2021 2.5G Luxury Edition has a top speed of 210 km/h, uses a 2.5L inline 4-cylinder engine, with a maximum torque of 250 N·m and a maximum power of 154 kW. The tire specification is 235/45R18.
As an enthusiast who often repairs cars myself, I've dealt with low idle speed after power loss in the Camry multiple times. Don't panic first - start the engine and let it idle for 10-15 minutes, the ECU will automatically adjust. If that doesn't work, check the throttle body: remove and clean carbon deposits, spray some specialized cleaner, then reset the system. The method is simple: turn off the ignition and wait 10 seconds, turn it on but don't start, press the accelerator pedal to the floor a few times then release, the idle should stabilize after starting. Drive some city roads to assist the learning process, and finally ensure the air filter is clean to prevent abnormal air-fuel mixture, avoiding engine vibration that affects longevity.
After driving a Camry for over a decade, I've encountered low idle speed several times after power loss. The root cause is the ECU memory reset, which disrupts idle control. The solution is simply to drive around the city or on the highway for about 20 minutes, and the RPM will naturally return to the normal range of around 700. If it still shakes, suspect severe carbon buildup or sensor failure—cleaning the throttle body followed by a few minutes of driving usually fixes it. My experience as a long-time owner suggests checking the battery voltage stability before disconnecting power. Preventive measures are far more hassle-free than post-failure repairs, especially for new cars—avoid randomly disconnecting the battery cables.
