Well after sorting out a few bugs I got the engine to idle half decent without really changing much in the tune. So that will require more work at some point.
I have installed the 28-30 PSI spring in the regulator and fiddled around with the BPC a little bit to see what it might like..... It's running pretty poor now with that spring in there. Probably getting way too much fuel even though my wideband says 12ish... Still too rich for idle.
After putting that spring in the regulator, the injectors make a howling sound while pulsing, and the fuel pump sound WAY different compared to before. Also getting a fuel pump relay error after this.
Don't know what the fuel pressure is actually running at, I ordered one of the adapters to install a gauge and it will be here in a few days so I can nail that factor down.
I have been away from TBI for so long while dialing in my 3 bar 411 PCM S475 6.0 that I have become quite rusty with the OBD1 side of things.... It is commanding an AFR at idle of like 12 or lower.... I can't remember what table(s) are responsible for this?
Attached are several tunes and logs THe tunes are both using different experimental values of BPC since I'm not exactly sure what it should need. ANd the logs are when it was started and idling decent BEFORE the 30 PSI spring, and then AFTER the 30 PSI spring was installed in the regulator.
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