Guest Posted October 26, 2013 Report Share Posted October 26, 2013 Hi, on the dyno today with a series 2 rb25det, tuner found he required very large numbers in the fuel table to achieve the desired AFRÂ at most notably off boost atÂ 4000rpm (see attachedÂ picture), above or below that rpm and once on boost the values in the table are more as expected. he was stumped and so are we. fuel pres. is good, when using more reasonable numbers in this range the carÂ clearly behaves as if lean, confirming its not erroneous readings from the wide band, same behavior also seen on 2 wide bands in different locations. this is off boost only so we have no idea how "more air" is there requiring more fuel. if any one has any ideas as to what this could be, we would love to work out whats going on. can up .pcl if needed on the other hand car still made 240kw on 12psi so not to shabby. Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.