Engine idles fine until it reaches normal operating temperature, then idles rough and stalls?

2011 CHEVROLET EQUINOX

240,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC

GLACKEN85

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Only at idle runs fine if gas is pressed if driven too long like this the screen reads reduced engine power, but no change to RPMs, no change to speed or power. code read intake air temperature sensor, so i replaced it and the problem was not fixed. Also, cylinder 1 is running lean timing chain was just replaced due to broken guides, VVT solenoids both have been changed. i didn't notice the problem until after i changed the solenoids. I hope you can help.

Aug 1, 2023 at 8:46 AM

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STRAILER

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First make sure the engine oil is clean and full, next run the codes and give me the code numbers, then I would service the throttle body because it sounds like the vehicle is in limp mode.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/throttle-actuator-service

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

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Aug 1, 2023 at 1:47 PM