haking obd ii

hi i try to looking for hack the obd ii (ecu)
i new in this form and liike noob
we and my friend have a problem with some cars more most all the time ford dodge and honda
it like not ready for emission and sometime with have the cheking engine lige on and when we fix something it show up another code so if some body know how to pass emission
we allready take air pollution they give the certificate but they not work on saturday and sometime on fridays and we waste money on that
my quiestion though
some people tall me with snap-on mt2500 u can do in some cars?
can i do that with my laptop top?

serger welcome to the forum

I am so awfully sorry and ashamed, but... I do not understand what is your question

I'm new to this area, and I got some questions.

Can you modify the ECU with a obd ii tool?
How can you do it and what are the requirements?

I've spent a good amount of time looking for some info on this with no apparent luck, could someone
enlighten me on this, or give some links for tutorials and what-not that I may have missed on this forum.

Any comment is appreciated, thanks!

Serger perhaps THIS link can help you out?

thanks you jeffie

do u know something about reactive active sensor?(usually o2)
what type of programm can help me out?

exist a program can reset onely one sensor?

Any comment is appreciated

serger I get by as I read and apply things. the reactive active sensor isn't yet my field of expertise, but reading the link I placed I find some very informative 'know-hows'.
Did you read it?

yes, do you know one program called vag-com?
how to setup? (i have a all-in-one usb and work in another programs exect ibn this one i dont know whay can u help me)

thansks you for all you help

I have heard of the program and read about it, I do not exactly know how to set it up. there are so many variances it is quite confusing. what care do you want to use it for?

usually i have a problem with ford i need something can read dtc, erase all the codes from the ecu erase erase because some cars u fix the problem and still on the checking engine ligh

one of my fiend has a snapon and he tellme with some cars like nissan u can erase one sensor or something reactive??? the sensor with out fixing the part
i dont know who the do that ??

can u reacomenber a program to connect m,y obdii?

Well I must honestly admit that I am more an old-fashioned DIYer I do not understand too much in computer programs at all. But, perhaps this site is a bit helpful?
please click