Hi,
Have you checked to see if there are stored diagnostic trouble codes? If you haven't, I recommend doing that first.
Here is a quick video showing how it's done:
https://youtu.be/b2IJGfImVvw
I realize most people don't own a scan tool. However, if that is the case, see if a parts store will lend one to you.
Next, a large engine vacuum leak can also cause issues. If you haven't checked for leaks, do that as well.
Here is a link that explains how it's done:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Start with this and let me know the results. Also, let me know if there were codes retrieved and what they are.
Take care,
Joe
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Tuesday, September 27th, 2022 AT 8:02 PM