speed density issues after flashing new tune!!

[tahoels1]

hi everyone

I have 2003 chevy Tahoe recently I installed an ls2 turbo PTE7685 and on the charge pipe I had the MAF sensor installed, yesterday I extracted the IAT sensor from the MAF sensor and the car starts and dies immediately so I checked my tune I had the MAF failed but it doesn't show in the DTC tab (P0101-P103) so I kept starting the until the DTC for MAF popped the car fires back normally. maybe I have done something wrong ?tune07.hpt

[cobaltssoverbooster]

under diagnostics section the maf hz fail must be set to 0
also its recommended to lower the maf enable rpm (airflow section) to a low rpm like say 500.

i cant see your tune right now but if your maf codes are set to mil first error and those are set as well then it should fail out.

[tahoels1]

The maf fail is set to 0 and dtc set to first error but the car doesnt start only after 10-20 cranks.
But when the code sets the car idles drive sweet like there is no issue.

[Lakegoat]

What does extracted the iat sensor mean? You relocated it in the intake? Your PE looks a little strange. Enter PE Map should be around 85kpa. Boost enrichment should be around 105-110 kpa, not 640kpa.---unless you wanted it shut off. Zero out the Maf table except the very first number. Does your map sensor match the numbers you have in the tune (3bar)

[tahoels1]

What does extracted the iat sensor mean? You relocated it in the intake? Your PE looks a little strange. Enter PE Map should be around 85kpa. Boost enrichment should be around 105-110 kpa, not 640kpa.---unless you wanted it shut off. Zero out the Maf table except the very first number. Does your map sensor match the numbers you have in the tune (3bar)

I mean by extracting the IAT is taking the two wires from mad sensor and install them in a new separate it sensor .
I don't use boost enrichment pe .
The map sensor is ZR1 map sensor .