[arpad_m]

Originally Posted by jebfour

Bumping this old thread...

I did the unthinkable and disconnected the battery and now I have catalyst and O2 sensor are incomplete / not ready. After doing another drive cycle today, now the fuel sensor monitor shows as incomplete / not ready (??). This is beyond ridiculous. The car has less than 7K miles.

Just because I'm at my wits end with this thing, I have a few questions. They may be stupid, but I'm going to ask them anyway.

- During the drive cycle: After doing a cold start and letting it idle for 2-1/2 minutes, I have to drive over to a place about 5-7 miles away so that I can hold 55 MPH for three minutes. Could that short drive in-between the two steps be causing an issue?

- Can I use cruise control to hold exactly 55 MPH or will that cause an issue? I wouldn't think so but as frustrating as this has been, I wouldn't be surprised.

- Is there really nothing the dealer can do to get these ready? It's not like GM goes through all this nonsense before putting the car on the lot.

Here is an older, but hopefully still valid article about the GM driving cycle: https://www.obd-codes.com/trouble_co...ving-cycle.php. Try this method and see if readiness monitors are finally satisfied.