My older style TOYOTA P/UP had failed emissions. They decided it needed a new Catalytic Converter ($1000.00 +/-). I wasn't convinced, took it elsewhere. "TQS" replaced the O2 sensor, all is great. But I had to 'un do' Craig's oil change, I hadn't asked for it to be changed!...My circle of friends w/ Toyotas and Lexus is 8. That's 8 more cars they'll never get a chance to service. My request for even a partial refund of the diagnostic charge has been ignored. THEIR DIAGNOSIS WAS JUST GUESSING,,,,REALLY. never again.