ls7 card style swap

[tk1976]

Hello gents, I have swapped my stock ls4 MAF to a LS7 card style with 4" tubing. Car runs on VE with the maf failed and i have the signal from the new maf and IAT.
Question, is there any other parameters you need to adjust besides the maf curve? I have try leaning it out and adding fuel to the maf curve but no change. Car starts up and dies after like 2 seconds. Car was tuned last yr and ran fine on stock maf.



april_27_tuning_13_maf_failed.hpt24-04-27 18-49-13.hpl

[blindsquirrel]

The IAT is different - LS4 is a 100k thermistor (scale goes from 47.5-100,866), LS7 (at least in the sample file I picked, since you did not specify a year/make/model or part number for which sensor this is) is a 50k (scale 58-43,320).