Hks Fcd

[affygt]

On The Hks Fcd I Took For Mot Failed On Co Emissions Being 6.29 Well High -maximum Being 3.50 Gt Turbo 1995 I Took Back Home Found The Fcd Which Was On Cut Could This Be The Problem So I Put Back To Normal

 

[Dub-Se7en]

the fcd if anything would leanen it, but wouldn't affect it on idle.

do you have a rising rate fuel pressure reg fitted?