GOTBOOST....
Newbie
hello new to site still navagating but have mpi stage 1 11 psi on 09 apex and having 14.5 atf readings and red at 8 allready on gems seems to read lean at end of wot and spikes alot anybody having issues 
ride at 200 elevation vp 116 fuel wondering how long senser lasts have 700 miles from last year and 50 from this year seems
ride at 200 elevation vp 116 fuel wondering how long senser lasts have 700 miles from last year and 50 from this year seems
you may have to turn up the boost added fuel i believe its the green/blue read the maual to be shure i'me not misleading you
shawnmcgr
Pro
I've heard you may need a fuel pump up grade to avoid lean at WOT @ lower elevations. Where are you riding?
At WOT you would be getting fuel from red mode and green blue (boost). As spddmn said try upping your boost fuel(green blue). What is this setting at?
At WOT you would be getting fuel from red mode and green blue (boost). As spddmn said try upping your boost fuel(green blue). What is this setting at?
kinger
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That was my problem till I went with a 255 lph pump. I hold 11.5 AFR now at WOT as long as I hold it down. Very nice.
badluck
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You DO need a bigger fuel pump on the stage 1 at 11psi for the long hauls. And when you change the pump out you will see a increase in the top end runs! As for the spikes on the A/F when you let off of a WOT run the engine becomes a pure air pump showing the lean condition. This is nothing to worry about! And the o2 life has to many variables to pin point it life span. But I know the race fuels shorten it's life!
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