5.3 LH6 4l60 cam swap tuning help

[Stock]

Hey guys new to tuning and the forum. I recently did a cam swap on a 2007 envoy with the 5.3, cam is a summit stage 2 truck cam https://www.summitracing.com/parts/sum-8701 . When I swapped the cam I deleted the AFM and installed new ls7 lifters. Has stock everything else. I got it running pretty well but It has its quirks, stalls sometimes when shifting into gear, surging on startup and sometimes lurches forward when coming to a stop. Also my fuel economy is in the gutter. Tuned for 87 fuel.

I am learning and am hoping for some guidance. Im not looking for a speed monster I more so picked the cam because i hoped to increase the low end torque for towing a small trailer.

I have a wideband fitted but for the life of me I cannot get it to read out on my computer and show in the vcm scanner.

Here is the tune file Im working on:
2007envoy.hpt

Any help would be appreciated I will try to get a log file uploaded but I havent done one recently so the ones I have probably wont help.
Thanks guys

[kevin87turbot]

You need to increase the minimum airflow table by at least 25% or so to start with. You might even have to add more than that.
You may also have increase the startup airflow table just a bit if it doesn't want to startup when it's warm.

I'd recommend adding a least a couple degrees of timing at WOT, and remove any delays in the PE Mode. Change the PE EQ target to something more appropriate...around 1.18 or so is a good start.

[Stock]

Thanks for the input. I havent had any hard starting issues warm so far. When you say add timing do you mean the whole table or specific areas on the table? And when you say remove the delays for PE it is set at 5k rpm what would be a good number for that? Thanks again.

[blindsquirrel]

GM tried really hard to make the 5.3 feel like a turd compared to the 6.0 TBSS, it might not be a bad idea to copy over the TBSS spark tables and see what happens. I think you will be pleased. Even the TBSS tables are rather conservative. There's a lot to be gained with spark on the 5.3s.

[Stock]

So I updated the tune and modified the values with your advice. I think using the TBSS spark tables and some other parameters made a big difference because it drives significantly better. Ill have to drive it more to get a feel for how its performing I only drove it a few miles tonight.

Heres the updated tune and log file:
2007envoy2.hpt
newcal.hpl

Let me know what you guys think and thank you

[blindsquirrel]

Some of the channels I wish I'd added before I ever made my first log:

Injector PW Avg B1/B2
Injector Tip Temp
Intake Valve Temp
O2 Voltage B1S1/B2S1 (SAE)
DFCO-PE/COT-Coolant-IAT-Launch Advance (basically, everything with 'Advance' in the name)
Throttle Position (delete the 'SAE' one)
Throttle Desired Position
Throttle Commanded Positon
Accelerator Pedal Position
Accelerator Pedal Effective Position
ETC Torque Management Type
Spark Torque Management Type
TCS Desired Engine Torque
Desired Trans Torque
Fuel Trim Cell
Commanded EVAP Purge
EVAP Status
EVAP Vent
Mass Airflow Sensor State (OK/Fail)
Power Enrichment (on/off)
Fuel System #1 Status (SAE)
EQ Ratio Commanded instead of AFR Commanded (just delete the AFR altogether, it will only confuse you later)
Trans Current Gear
Trans Shift Solenoid Pressure Mode
Trans Fluid Temp
Time of Latest (gear) Shift
AC Pressure
AC Clutch Engaged

Some of those you may never use but if a channel isn't logged the data is gone forever. Better to have it and not need it.