LS1B Chopacabra cam Magnuson Super I feel like im drowning.

I am struggling to get anywhere with the tunning this is my first time trying to tune a vehicle. I have read several forum posts and have figured out how to get the truck to idle but now it seems really fat on the tune and I don't seem to understand how to lean it out properly. I am willing to learn anything someone has to offer thanks in advance for your time and knowledge.

05 GMC Yukon XL with a 6.0L
Texas Speed Chopacabra Cam 214/222
Delphi 42# injectors 58 PSI from fuel pump
Magnuson Magna charger 8 PSI
.020 over bore

Here is a short log let me know if I have something out of place or need more data please.
Attachment 24936Attachment 24936

Post your tune

Whats the part number on the injectors?

The Injector Part # 25176061

I did a study a tune LQ4 LSA that someone else posted and I tried to understand more which lead me to add a boost VE table and changing my main VE table here is the new tune and a data log from current tune. Thanks for your reply.Attachment 24938Attachment 24939

Need to know what MAP sensor you have.
Here is just a startup deal.

Map sensor Part# 09359409 3 Bar

Thank you I will be going over that file so I can try to understand more about the tunning side.

I installed the tune hoping to get a log and it instantly popped.

P0103 Mass Air Flow (MAF) Sensor Circuit High Permanent ($01) EPA-Perm, Supp

I did capture a short log at idle if it helps.

Attachment 24941

Quote:

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Originally Posted by Built Tech

Map sensor Part# 09359409 3 Bar

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That is showing to be the factory 1 bar map..

Thank you I see that now that you pointed it out. I looked at one on Amazon and it was the wrong information. Would you recommend a different map or will this one suffice?

https://www.pcmofnc.com/2020/03/12/g...r-2-bar-3-bar/

I would use the 2 bar on the top left in this picture. Its plenty for 8psi.

Thank you for the incite. I have installed the 2 bar sensor and the truck starts and dies within a second or two after which it cranks and stumbles but doesn't start up. Is there an adjutment that needs to be made under the Engine Diagnostics > Map section?

Ok.
Which 2 bar did you buy?
Got to adjust the settings for it and some more settings as well.

I requested the delco part # you supplied but the parts guy ordered me a Standard AS314 after it came in he said it was a direct replacement.

Ok making sure.
Ill update those numbers and send you a revised startup tune

Thank you for checking up and making sure I had the correct part. Sounds good I appreciate your help.

I forgot to update those numbers.... I gotta go get the other laptop that has the newer software version..

Cool thanks I'm in Deadwood for new years which is 300 miles away from the Yukon. It will be Monday before im back. Happy New Year.

I am back from vacation and I am hoping to get this Yukon up and running is there anything you need from me on this end data or parameters wise?

Here is a speed density data log. I am trying to understand what I am looking at in the maps vs what I will change in my VE table, is it correct to have dyncylair / LTST as the table I am looking to lean out? Thanks in advance for any pointers or tips.

Attachment 24978