AllOutPerformance
May 22nd, 2010, 02:58 PM
Ok ive got a 2008 5.3 with a maggy super charger.It had no maggy base map,It did have a mail order tune in it but was very scary lean,Found had the wrong injector flow rate entered in,So i fix that and it seems to run decent not great but decent,do some pulls and has missfires.Go round and round with that swapping a good set of wires,re gapping plugs tighter for spark blow out and even tried a good set of coils off my own rig,no change.So i dig a bit deeper and notice no change in the ve table.So i disable the maff and pop the yellow wire from maff harness,ve table was very very lean.So I start making changes and get it pretty decent at idle and cruise,light load is ok heavy load still lean,So i continue to work with it and it started popping a p0068 p0108 and a p0102.Im pretty sure this is cause by to much diff between the map and tps readings.Can anyone please help me out with this dang thing.I did follow the steps on the e38 e67 maffless ve tuning setup.Ive been screwing with this thing for like 3 weeks now.And Im at my wits end.Thanks guys.