After 2 weeks back and forth, the mechanic experienced the issue while monitoring the pressure, and said it stayed at 58, ruling out the fuel pump. Claims ECU shows no errors , but from what I'm reading here, that may not be a true indication that there isn't a dead spot of some sort?
At this point, maybe a need another mechanic to pick up from where this fellow seems to be stuck, or if I can find a good place to purchase the parts you all say may be going? ( tps, etc ) , out of sheer desperation, I'm about ready to start replacing them myself .
Crazy thing is in 96 I had an Eclass, and another in 01. Both had that 3.2 engine. Drove them to the ground, and never any issue like this. Had the limp mode on the 01, which was fairly easy to fix, and a bad o2 sensor..also easy piecy, but this is making me nuts