I was ok up until now with searching trial and error configuring things and playing with options within my tune, it's all reversible when something is enabled that shouldn't be and vice versa. Now I've run into a legitimate driveability issue and I didn't even change anything when the problem presented.
Ill post my tune and log file for help 7.22.2021.hpl roy 7.hpt
I installed a vintage air Sanden compressor, had lines fabed, installed all other a/c components, charged system a/c working well. PSI harness was ordered with a/c integration option but I haven't hooked it into the system yet. Before I could look into how to do that this condition arose.
The truck starts cold (90 - 102 degree days) idles for a minute veh temp under the threshold for open-loop idle suddenly comes up to 750-1200 varies every time. Drive away the veh seems lacking in power and cuts out (like a fuel pressure drop) then intermittently cuts off randomly like and ignition failure sometimes poping (building up fuel with no ignition then igniting when it returns). Then as if something has changed it smooths right out and runs fine. I can find nothing loose or leaking or otherwise suspect of causing any of this. IAT seems high and it is drawing from air under the hood but I haven't changed anything. Added a/c components yet which would cause more heat but it's doing it from a cold start without running the a/c at all. Could a faulty IAC sensor giving an inaccurate value to the PCM cause this much havoc? Why does the power seem so down too? Expected some loss with a/c on but again nothings changed with a/c off so WTF?
Hope I havent asked anything stupid or used any incorrect terms, I am new to all this and I will get there so thanks for the patience. Its hot and frustrating and im trying but someone please help me see what im missing. Hate asking and dont rely on charity but despiration brings out the humble.