A buddy got this code on his 05 d- max...I cant find what it means anywhere..Does anyone know what it means?1093 code

fuel pressure is not attained..

any mods to truck?

Yes it has a v-a protype box and 110 hp and a ppe stacked, with an AFE cold air intake and a full exhaust...I guess he just needs to turn it down alittle..

could be a programming glitch

if it does it stock, take it in, if not....