Originally Posted by S13RAM

ive just recently got a iaw programme off motorsport developments and ive got a lm2 afr guage. I got the ratio to around 14.5 -15.0 on idle and its about the same on cruise maybe more 15.0 but when i boot the car insttead of heading down towards 11s-12s it goes up to about 17 what would cause this its doing my head in now?