Have Toyota Questions? Ask a Mechanic for Answers ASAP
Hi, I'm Ron and I will be helping you today.Stand by for a moment while I prepare your answer.
The fuel pressure needs to be tested with a gauge first on a cold engine, then when it is acting up. It's possible,that the armature is getting hot causing less fuel flow.
You can get a gauge from most parts stores for just a deposit.
If you are satisfied with my answer, I would greatly appreciate a 5star rating now and I will still assist you after you have rated metoo if another question pops up. I don’t get credit for helping youuntil you rate me.Thanks again, Ron
You're right,O2 sensors won't cause that.It sounds like they're guessing. You may want to try a better shop to diagnose this.
It sounds like it's going into limp mode.