Just wondering what the fuel cut is on a 89 TII? Ive had mine up to 12psi already and it hasent hit a fuel cut yet...all my s4s had fuel cut but this is my first s5 TII... its stock ecu...and no fcd that i see....i monitor boost with a greddy profec e-01 and air fuel with a aem wideband...other than exhaust and intake the car is stock.... i listed that i have a wideband so people dont say u shouldnt be running 12psi with stock injectors....

thanx

 

what afr's are you running?

 

Fuel cut is at 8.6 psi on all TIIs, so if you're surpassing that, you have some sort of FCD.

And no, you should not be running 12 psi on stock injectors without a minimum of a bigger fuel pump. You should be running more like 8-9 psi max on stock fuel.

 

i have a walbro 255..and afr's stay around low 11's under full boost....

 

well either my boost gauge is wrong orrr my ecu has been chipped and it doesnt say...maybe a fcd is hidden really well??