Miss after 5 min, runs great over 3000 RPM

[Funracer]

Originally Posted by rollinsperf

I drove the ZR1 with a scanner on it yesterday and found that the RH O2 sensor went to .724 and stayed there. Shut the car off, drove it a little later, same thing. New RH O2 and the car runs great, so good that after an 8 mile thrashing I could finally verify the starter hot soak problem. 3 hours later, the starter would work again.
Thanks for all the great suggestions

Which scanner did you use?