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Good news and bad news. I won't be testing for a bit while I rebuild the transmission. Main shaft broke during the video test session for fuel pressure.
The factory fuel pressure regulator is still...

Thanks, I am borrowing a known good IAC to swap out and test.

This is funny I did this underhood video job on my Buick verifying fuel pressure rise. I'll do it again on this car, I forgot about a workaround that can be utilized now. There's a removable section...

I do that now with a mechanical gauge on a 16" hose but this machine is mid engined I cannot see the gauge behind me plus the engine is sealed off from the interior. I'll come up with something

Thanks for reading,
I have verified no intake manifold leaks on the manifold itself or manifold to heads or around the throttle body.
Only cleaned but not replaced the original IAC motor. It...

This car drives quite well on the v8vairSD0 file but I need to go drive and log it some more. The WOT pull feeling is a bit choppy its not smooth trying to figure that out but this long or almost no...

I have a post here about a speed density setup on a stock 5.3L and I ran into some issues that caused me to just start over again. Since that post was made two wide band O2 sensors have died, rust I...

I want to thank everyone who helped me and offered advise.
I have started over with SD tuning from the original VE table and it has gone great now that the fuel filter is no longer a contributing...

Connect the black and brown wires to chassis ground.

No, only one O2 sensor location and I didn't notice until I had the headers ceramic coated.
So just the wide band O2 one the left bank header.
I'm am again starting over with the original VE table...

Is power enrichment not enabled? I only adjusted the EQ ratio in that table I'm certain.
Agreed the stock engine should only need tweaks and it is acting as such.
This swap did had a very recent...

Changed the OL F/A vs ETC vs rpm table back to stock.
I see the whole low spot in the VE table and whole table is an odd shape. When driving this area is always rich in the logs and gets fuel...

No don't hold back!
Learning everyday, won't hurt my feelings that's why I post up for help. Thanks
So are the stock open loop FA vs rpm table settings acceptable or should the values remain...

Latest tune and log attached. This is driving pretty well and it seems the SD tuning is going fast.
I'm really only working on WOT right now and it's early in tuning yet, I see the wideband...

Wide band o2 now logging through Pro link+ after a quick setup that weas easy.
I have two trips working on the VE table but running out of time today. I have not solved the high IAC count upon cold...

I adjusted IAC reset position on this tune update. It was the only thing I could find that has the IAC count at 310, I changed it to 128 and loaded this tune in tonight and have two data logs. On the...

Yes, it is for sale and never listed, Contact me.

I need get another log and use the bidirectional control on the cold engine start tonight. I may not have entered 0 in the IAC in the first test definitely entered 120 not 128 but the idle did...

Took me a min to figure out the IAC steps then hit ON button with bidirectional control, happened after the engine idled normal. It did work 0 was same and 120 bumped idle rpm up it can be seen in...

Fixed IAC counts, didn't know what it was called so added a lot*
No connection to VSS, I did label and keep it in the harness. Not sure what to do about that this machine has a mechanical...

^correct I understand, I found it and added to log config.
Another log from tonight but This is the 2nd start I forgot to switch the log config on first fire up.
I cycled the ignition off a few...

Thank you Alvin, I noticed myself and have updated my log PIDs since these but no drives yet.
Missed IAC counts I'll add that.
Trouble finding voltage to log under alternator, f terminal has ratio....

updated tune file and a couple logs.

Thank you. I did not know that the MAF dtc still needed failed to run speed density even on a speed density flashed OS.
I have installed my wideband on this engine now but I don't have prolink+...

I fired up this engine for a data log and missed the first high idle session somehow so only have a log of a normal idle, the log is called that.
So let the engine cool off for 3 hours and restarted...