All 1996 Lexus LX450 questions

But comes back on after 2 or 3 engine cranks.

The ECU was checked and is working properly. Where do I look next?
Thanks

my car begins a major vibration, accompanied by power loss, after 15 min driving at 65 mph. Pull...

I have a P0401 code up solid. I have changed the EGR valve and modulator. I suspect the EGR tempe...

I have failed my emissions now 4 times. 1st time battery was dead from sitting, replaced battery ...