put a wideband on the binliner and on boost it is in the 11s but on idle it is around 15-14.5 but gradually gets richer and richer every few seconds or so until after around 3 minutes it will be in the mid to early 12s. This shouldnt happen should it,so what would cause it to richen up on idle like it does? std lambda??

 

if its at 14.5/15 at norm temp at idle then gets lower as it gets hotter could be just compensation in the ecu ect but 11 are finr on boost danny

 

so it dropping into the early 12s on idle is ok and wont be borewashing etc? if i lean it off on the safc it just makes it mega lean on idle the next time i stop until its sat a few mins and richened back up

 

have u got a temp compensation table on the ecu dan

 

its the standard ecu m8 with a air fuel comp which manipulates the afm signal. crude idea but helps cure the overfuelling stage 1 mods cause,so no i havnt, plugged lappy in and ran some sofware which reported no sensor issues etc but other than that,the wideband and egt gauge with knock sensor its all ive got to help get it right. How dangerous is running lean on idle??

 

sent u pm