So I finally found the 3110 doc and that seems to have all the request and response info one could need to experiment and get any PID they might need. I’ve decided for the time being to not pursue a request and response situation just yet since I am able to get all the info I need from the bus by sn...

So this is a 2017 Silverado HD 3500 with L96 engine, E78A ECM. Thanks for the request example. I’ll have to try to figure it out.

Those are also not in any logs as IDs. I do see those particular combinations plenty throughout the logs but I don’t understand the data they might be conveying or what the request was to have the info get sent out. In the GMW 8762 1EF, the MAF data, is called a request type data. So I guess I have ...

Unfortunately 195 does not come up as a CAN ID in my logs. I also don’t see any instantaneous fuel data broadcasted, to use as a substitute, either. I will try polling for the missing data I need once I figure that out a bit more.

Thanks Gatecrasher. I haven’t tried polling yet so that is my next quest. I have a obdii diagnostics reader that can make a custom list for real-time data viewing and it can display the MAF data so I will plug it in with a obdii splitter at same time I read a log to get the packets that I will need ...

I added a screenshot here as I can’t view the video so maybe others can’t also.

I started a project to use an Arduino to connect to my GM vehicles. The software I’m developing will be able to record and play back logs, be a dashboard, and trigger outside power adders such as nitrous, methanol, or charge pressure blow off valve systems. I’ve been able to just learn about broadca...