You could be right that it is one of these two options but those are highly monitored and more then likely you would have a check engine light on if the VVT or solenoids were causing low power. We should start with just checking for codes and make sure there are none even though the engine light is not on.
If there are no codes, I would actually suspect a fuel pressure issue because it sounds like you are just losing engine power and as you are, you are stepping on the accelerator and then the transmissions is downshifting like it should. As you give more accelerator, the trans should down shift to give a lower gear, higher RPM, which is more power. It is doing all this except for the more power portion.
I would start with fuel pressure when this is happening assuming there are no codes.
Here is a guide on pulling codes. If you just want to stop by a parts store, they can pull them free of charge as well.
If there are no codes, the let's check pressure when this happens. You can just hook up the gauge and tape it to the windshield and drive it to see what it is when this is happening.
Let me know and we can go from there. Thanks
Saturday, May 2nd, 2020 AT 9:13 AM