Update...

Upstream bank two O2 is dead now so replacement is here tomorrow [emoji106]

Still haven't figured anything out but since I run Torque Pro real time anft doing a quick clear from it MAF numbers go up... i.e. 1.0 to 2.7 and so on but only able to get to 6.4, I have also noticed that my head unit stays connected to my OBD2 dongle via BT but is now greyed out and won't pair to anything else even if dongle is unpaired.

Is it possible that something is causing a "hang" in the clear code function and sticking the winnie to the bus making a MAF failure?[emoji1696]

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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course