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I am almost embarrassed to admit that I though SD was open loop only!! Now that I understand that it works closed loop I have some reading to do!

Meant to post in the v8 section but this will do.

Gee whiz, thanks Mr. definitely not a spambot.

Yessir I?m taking it to another place just to have it flashed back to stock cause I can?t even access through the obd and I?m not wanting to order a...

Looks like you've got an interesting issue here. Based on your description, I think there are several areas worth checking: MAP Sensor Issue - You...

Put it back in closed loop and tune it with the fuel trims (part throttle) and use the WB for WOT tuning. And you zeroed out 2 injector tables. Put...

https://drive.google.com/drive/folders/1TdfNKJItUDTNlgHZOnjyJub3OMNWx89Y?usp=drive_link here is the log and adjustment tuning the log in folder...

so i have a 2002 suburban, that i have read and written to once already, but now i cant even read the vehicle im trying to tune. first time hooking...

In order to help you need to list a rundown of what parts you are using and post a datalog. For some reason you have MAP values for something other...

I think i got it fiqured anyways.. after the tuner refunded my money.. he sent me the tune without the corruption... I entered in my injector data...

Thanks for asking. No time to race with all my responsibilities. I did upgrade to a 95mm throttle body and did a lite home port match on the lower...

hmm, I was following this thread.. https://forum.hptuners.com/showthread.php?58157-Gen4-idle-tuning-guide&highlight=gen+idle+tuning perhaps I...

In the short term it barely matters, as we can always just wait a second for the pump to prime. In the long term I wonder about the effects of...

The ones I mentioned, and some others have contact info in their signature lines. You may want to privately contact someone, as the good pros...

Is this the Chinese equivalent of DIY?

Any updates to this build? Track times?

Should I be asking somewhere else ?

Sounds like time for another class hah

1 day turnaround on my end, shoot me an email for more info. [email protected]

Touche. In my head I was thinking more of hydraulics and of a relief valve. But that would not work haha. I guess it still stands that the...

There are several professional tuners who frequent this forum. Alvin, Ghuggins, and Edcmat are just some that come to mind. Unfortunately, there...

if i were to send it out this weekend what the turn around time looking like ?

Buddy refunded my money... anyone wanna .are some cash fixing this mess ?