Map sensor reads boost and the amount of boost it sees will richen the car up. If it does not see any, those tables won't do anything with your fuel probably making the car a lil lean... Not sure where the map sensor is on the L26 intake, I think its where that hose is sticking straight up on the left and the line runs all the way over behind the tb there and is t'd off into the bov and then to the boost controller. Not sure what your asking here either. What bar map sensor came with the L26's?? topswap guys might know...
