LRS95TSI
15+ Year Contributor
- 450
- 4
- Nov 9, 2004
-
louisville,
Kentucky
hey guys i have been spending a couple of days trying to tune my new setup. evo3, 18 psi, walbro 190, pte 680's, safc2. i have got my low end rpms (2000-3200) good. and i have my high end rpm's tuned well(5800-redline). however, when my boost kicks in at about 3250-3300 my timing drops to 9 or 10. then it very slowly increases to 15 at 5800rpm's. i've been told that when i hit full boost my timing will retard, however, the car is not picking back up and is stuttering in the midrange rpm. my o2 volts have not been steady enough to read and determine lean/richness. i'm wondering if any of these problems could hafta do with a swapped 02 housing and sensor, and/or my sparkplugs? i am pretty new to tuning, so i could use all the help. sorry for the long post but i am pretty specific as to my problem.