Hesitation and sputtering

Hi,

Was this happening prior to the oil change? Also, is the check engine light staying on when the engine is running

Since it happens at a higher speed, it could be related to fuel pressure being weak. Here is what I suggest, if the check engine light is staying on, you should have the computer scanned. Here is a quick video showing how it is done:

https://youtu.be/YV3TRZwer8k

I realize most people don't own a scanner, but often times a parts store will do it free of charge.

Next, if the light isn't on, we need to check the fuel pressure to confirm it is within the manufacturer's specs. If it is weak, it can cause this as well.

Here is a link that shows in general how it is done:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Here are the manufacturer's specs for pressure:

Fuel pressure: 301 - 347 kPa (3.1 - 3.5 kgf/sq.cm, 44 - 50 psi)

Start with this and let me know what you find.

Take care,
Joe