need help to tuning e38 for ls7 maf

[ridanakr]

at first i have 06 silverado with lq4 engine and e38 ecm, the mods is just an exhaust system and custom 96mm air intake filter with spectre cone , i did install the ls7 card style maf with an adapter connecter.
after maf installation i did tune the car for maf calibration airflow vs. frequency table , for sure i did use custom histogram in the scanner.

But i have faced in daily drive thats the engine is going to dancing like a big cam when the car in idle and low speeds (0~10 mile) after some searching through this forum i did find thats there some people faced same problem who install larger intake pipes (like mine 96mm) and the solution is to install a honeycomb, i did buy it from SaxonPC.com 3/4 inch thick, installed, re tuned, the problem reduced, but i noticed thats the problem is coming usually after some driving when the car going to stop and shift quickly the gear from D to N or P its coming again.

then i did make some change to engine>idle>airflow>base running airflow>idle airflow table, i did increased the volumes by .25 g/sec by highlighting all cells, problem reduced a little bit but still there!!

so what do you think guys thats i did missed ?
and how can i change IAT calibration table?


my hpt file is attached>

[ridanakr]

any idea pleeeeease

[DrLoch]

You need to post a log as well along with your cfg. To change the IAT calibration go to Engine Diagnostics>Airflow, there you will see IAT Sensor Cal.

[ridanakr]

You need to post a log as well along with your cfg. To change the IAT calibration go to Engine Diagnostics>Airflow, there you will see IAT Sensor Cal.

ok i will try to get a log file today.
the IAT sensor Cal table i know it but the table values is with percentage, so my question is based on what i can change (re Cal) these percentages values ? since IAT sensor cal table in camaro & corvette (voltage values) has diff lables than my own table (percentage values) ?? i need someone to guide me in this issue.

[ridanakr]

sorry for late to attach the cfg and log files, but yesterday i did found a mistake in the histogram thats i'm using to Cal VE main table , make the needed correction , re Cal the VE table and every thing is ok.

But i still need some help to how Cal the IAT table since IAT sensor cal table in camaro & corvette (showing voltage values) has diff lables than my own table (percentage values) ?? i need someone to guide me in this issue please.

[ridanakr]

any idea!!

[alexl226]

You can edit the axis of that table.
Use stock ls3 tune (from repository), edit your axis to match and then paste values