Well, the new sensor is toast! A new sensor was installed carefully. Same low coolant error. It was confirmed to be low. It's still bleeding out air. So more coolant was added. I'll keep adding coolant until it doesn't need any. Hopefully the code will clear. I'll pull out the Foxwell and scan it better.
Is idle supposed to change when the 710 (
) cap is removed? With the cap off before replacing the CCV system, it would idle almost idle the same. Now, if the cap is removed, idle does change by a lot. Is that normal now? It only has about 30 miles on it. So far, no codes but the "Check coolant level".