O2 ready monitor wont set

[crazycoupe]

This truck is turbo 5.3 with Cam. Cant seem to figure out why the O2 monitors wont set. Its been driving for over a year so plenty of time to set , I believe it to be in the tuning somewhere . Any help is great appreciated


KLI Tahoe most current.hpt

[TheMechanic]

Conditions for Running
DTCs P0133, P0135, P0136, P0140, P0141, P0153, P0155, P0156, P0160, P0161, P1133, P1134, P1153, P1154 are not set.
The fuel level is more than 10 percent.
The engine coolant temperature (ECT) is more than 60?C (140?F).
The engine is running in Closed Loop fuel control.
The engine has been running for more than 3 minutes.
The battery voltage is between 10–18 volts.
The mass air flow (MAF) is between 20–55 grams per second.
The engine speed is between 1,200–3,000 RPM.
The throttle position (TP) sensor is more than 5 percent.

You have several of those disabled. If memory serves me it is doing a several tests including a comparison of B1S2 and B2S2. Most will also use a switching rate to determine degradation. Easy to check on an "O" scope. It was a requirement when I was doing Smog tests. Every once in a while the BAR would come out and make you do hands on tests like this. Alos you didn't really mention if the fuel gauge/sending unit is functional through the PCM. That is also a requirement. Maybe someone else will chime in with other requirements