Help for 16F877A>18F452

[skimask]

Thank you lol.
But i have elm and many other interface but elm is not good for my project.
I work with a friend on a project we need KWP1281 and many other stuff, the software work very fine (100%) with 16F877A but i need to adapt this for pic 18F because the 16F877A flash is full.
It's my friend who have write the ASM files, but he need to stop the dev, and me i don't understand ASM and i'm not a good dev...

Well, get to writing...this is after all a PicBasicPro forum...not a PIC ASM forum, although most of the experienced guys here know their way around ASM very well.
I don't think it's a 'handle this for me' forum... I could be wrong, I've been known to be wrong, at times...

How about you re-write some of the code...and the rest of us here can help you figure out where it's failing...hmmmmmmmmmkay?

And why is the ELM327 no good for your 'project'?