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Are you tuned. All my monitors would not set until I went back to stock tune. Have no idea why.
This is how I have been driving around, apparently, all the time with a tune.

 

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All monitors set for me the next day, after stock tune. Make sure tank is not full or EVAP monitor will never set
(well, not until you get below 3/4 tank).

 

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Tune is from James just a 93 rk tune so maybe that’s why but not completely sure. Possibly the normal 93 tune wouldn’t have this problem but I can’t say for certain. I know he says his tunes have no impact on emissions stuff and I believe him but just not sure why it blocked those three tests (unless it does change some emissions stuff lol).

Just because the emission monitor is not setting, does not mean the emission systems are not working though