so after running with a modified byte 90, my vehicle is showing 27l/100km which is very wrong.

so Byte 90s first number is multiplying the vehicles true consumption by 3, which is what I changed it to.

Why then touch byte 91? Chatgpt thinks it's a fallback byte...but as we all well know, chatgpt talks out for its ass.

I guess one way to figure it out would be to use alfaobd...their options list has way more settings even if the program itself is less useful.

So byte 90 or 91 are range values?

Would it be possible for someone to aid me in resizing the tank please? Ive tried with byte 60 and 67 but I'm probably doing something wrong. byte 67 has something to do with an airbag module and luckily I didnt set it to a correct range, it spit an error. Ive purchased a new tank pump and tank for ...

I can say from my own experiance the glowplugs are nt your issue , especially if the scanner specifically says that the injectors are out of range. Im about 99 % sure its those injectors. In italy I bought a brand new bosch set for my 2.3 ducato for 800 euros. rebuilding them would have cost a simil...