I'm new to tuning in general and doing my first LS swap into a porsche 996. I built an aluminum block 5.3 from an 07 Silverado with a LS2 02-04 cam.
I'm having problems with short term fuel trims going very lean. I have a truck maf and an E38 computer with LS2 TB, ls1 injectors. When I unplug the MAF the trims seem to go back to normal. Any advice?
MAF 25168491
I've tried updating the MAF calibration tables to find a starting point. I don't have a wideband yet, but I just want to get in the ballpark and figure out what is wrong. I'm trying to get the MAF to work instead of just SD tuning as a beginner.