There are a number of things that can cause surging, so we need to start with the basics.
https://www.2carpros.com/articles/engine-surges
Basically, the TPS could cause some issues, but surging is most likely not the issue. However, it is worth inspecting and finding out for sure. I am attaching the testing and inspection, plus an adjustment process if that is needed.
However, the most likely cause of this is a vacuum leak. Here is a guide that will help with checking for this:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
When you are inspecting the throttle position sensor, I would suggest checking to see if the throttle bore is dirty as well. If they are then we need to clean it.
Here is a guide that will help with this:
https://www.2carpros.com/articles/throttle-actuator-service
The process to replace the throttle body is blow as well. Please run through this info and let us know what questions you have. Thanks
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Dec 2, 2021 at 6:04 AM
