[cebra]

I understand the sensors provide data to the ECM to make the necessary adjustments for air/fuel and timing. I was trying to provide a "what the sensor provides to the ECM and what the ECM does with this information" as throttle position sensor measures throttle position, camshaft position sensor measure cam position is true but I was more trying to determine what the ECM does with the input from the sensor. I have read quite a few times that the oil pressure sensor shuts down the engine, not 100% sure because internet but I read it a lot on the Silverado forums where the sensor fails and people get stuck on the side of the road but yes you can convert to mechanical gauge and the engine will run...it just loses the dummy functionality. Mainly I was trying to provide the information needed to determine what sensor issue you may have if you have X issue as chasing OBD2 codes is a bit of a waste of time as if you throw a MAF or Upstream O2 code it could be a handful of issues. I believe we are looking at it from a couple different angles but don't dispute your inputs, the manifold air pressure sensor does measure manifold air pressure, etc. I did learn some things from your post such as IACV is only on cable throttles so appreciate it.