I recently got my 5.3 swap project started, but am having a hard time with idle settings. The cam is not that big(summit 8719-209 int./217 exh.) but my fumbling newbie attempts at this have failed so far.
Basically stock 5.3 bottom end with small compression bump(4.8 flat top pistons) cam mentioned above with an LS6 intake. Stock 5.3 MAF. I have the engine sitting in the frame(no body) and the wiring rigged up to run everything. Fuel pressure looks good 58psi. I am limited on how long I can let it run(no coolant yet).
Tried running through a few guides on doing this(setting base idle RPM and airflow values), and have randomly had it idle for a while, but on re-start, then it won't? I am able to hold the throttle open to keep it running and it sounds good when you blip the throttle(open headers). Tried different IACs and re-learns for this and the TPS, but no joy.
I understand that getting this dialed in can take time, but I'm worried I am missing something obvious about how to get it stay running at least. Tune and log file of my startup attempts attached. Please help.