After reading this post I can't help but wonder what the heck hacs are. Any insight is appreciated, thanks.

 

An ecm reads it's instructions in machine code.
A hac is translating that machine code into english so that a human can read thru all the instructions, and values, in english.

 

Thanks, that was kind of the awnser I expected. So now for my next question, where do/can I find a full hac for a 87 camaro L98?

 

hmmm good question:-) Grumpy nailed it on the head, trust me once u start reading the hacs and playing with the hex u will not be sorry opens all new doors for you :-)

have the 730 hac............. Is there a complete 165 TPI hac and what of the 749 Sy/Ty , heard rumors of partial hac but no full one.

Any comments?
LAter
Jeremy

 

where do/can I find a full hac for a 87 camaro L98?
Do a search for BUA, fullname may be BUA_A.HAC or BUA_A.TXT, or BUA.PDF

Check for it at the diy-efi site and at the ECMGUYS site. A net search should find it some place.

RBob.

 

I thought the correct spelling is hack? a hac is something different..?

 

Thanks fellas, I think I found it. Does this look right for my 87 L98?

 

That's the one. Should be the $32 mask. Now there are two $32 masks, a regular $32 version then what is referred to as the $32B version. I don't know what the differences are, but they are close. I wouldn't worry about it, but if you start working on the code/cal tables it is something to keep in mind.

RBob.

 

enlighten me. dont you need a tuning "editor" to read the hack? i tried to load a bin into my TC but i needed to obtain the definition file for $8 ? i have $42 for 7747. i believe it is free for 30 days but never bothered to do it.

 

I wasn't trying to sound like an ***.. was wondering if that's right. If so then what's the diff?

 

Try rereading my first post on this thread.

 

The difference is the *k*.
Otherwise, there is no difference, round here.

 

i read it earlier. please elaborate. for some reason i thought a hack was a first time a specific ecu had been decoded and understood. what is the relationship between a tuning editor such as tunercat and a hack?

 

Thanks again for all the help. After spending some time paging through the hac I linked above I have come to the conclusion that a lot of it is still gibberish to me. Is there any type of hac walkthrough that can help me understand the trickier details of this thing. Most of it makes sense to me, but that is just because of my proir knowledge of how our ecms opperate. This knowledge is what I want this hac to expand on, and I'd rather not be making assumptions while hacking the hac, if you follow. Is there any help available similar to what I describe?

 

Thanks Rbob :-)

I wasnt aware that the $6E was fully hacked and commented like the ANHT :-)

Snagged that while i was there, have a couple of friends doing some MAF cars, so now i have something new to play with as well(need to get the TTA out)

thanks
Jeremy