Thought I'd start a post just for this since there was interest in it from other members as well as I in other various recent topics.

Why run the $8F? Becuase some people in smog **** states need to have a bin for controlling boost that controls all of the emissions equipment like the EGR, canister purge, etc.

The $8F is native to the 1227727 ECM and uses the AUAF as the most recent bin that I could find in the diy-efi.org database although AUFR and AZRC were also shown for this ecm, they were not found in the database. I have a lead on the newest AZRC bin but I'm still waiting for an email response on it. I could find not .ecu file for the $8F or the commented hac file that was said to be floating around so if anyone has a lead on those it's greatly appreciated!

From what I've read the 1227727 is simply the underhood version of our standard 730 so no re-pinning is required to run the $8F on a 730. Can anyone confirm this?

Also form what I can gather reading posts, the $8F is set up for DIS ignition not distributor ignition. Is there a hac version that has been made that will run with our standard distributor ignition?

Personally I think I'd like to try running a 1228707 ECM, the underdash version of the 1228708, which seems to be a good choice because it appears to be "fully loaded" 730 board wise and I need to buy a new ecm anyway since mine is toast, I may as well get a 707. Question now, is the 707 wired differently from the 730? If I run the $8F on a 707 it will need to be wired as a 730 if it isn't already set up for that configuration. I eventually would like to get a 3-bar version of the $8F going...

I'm trying to find out everything I can about the $8F since it seems to be the only solution to finally getting "everything" working and being able to control the boost like the $58/$60. So if anyone has an comments, info, or can answer any of the above questions, please post!

funstick, I'm axious to see what you have as far as using either a DIS setup, adapting the code for a Distributor, and the 3-bar code. I see through searches you have investigated all of this...

Thanks!

Alex

 

Just curious how your going to run something on an 8F that is smog legal?. Adding *boost* to anything takes a CARB exemption or visit to the referee stations, and there's no legal GM V8 boosted application that I know of you can try to appeal to their good judgement with.

 

Correct, in CA a Procharger is only C.A.R.B. approved if used inconjunction WITH the ProCharger Supplied FMU. However, in CA you only need to pass a smog inspection once every 2 years, so for the inspection stick the FMU on there for the visual then pull it afterwards. The point is that bing in CA you must have ALL factory smog equipment installed and operational at ALL times which is why I need a bin that will do this since using the FMU is a joke/patch anyway. The ****'s here are known for pulling you over on the freeway and doing on the spot visuals for EGR, cat, etc just to make sure it's there an working. In those cases they aren't going to care if the FMU is or isn't there so long as you show a C.A.R.B. approval number from ProCharger for it.

I see your point, of course nothing is going to be 100%, but then again who knows, if I could get the $8F running well enough I may be able to get a ref to approve it without the FMU...

 

I don't think you'll have any need for the 8707/8708. The only upside to it is the fact that it has all the functionality of the 730 PLUS P&H injector drivers. Running a V8, I would just use large sat injectors on a 730.

I may have some $8F stuff somewhere here, I'll look sometime soon.

 

Update...

I now have a virgin copy of the most recent $8F BIN, the AZRC. I also have an ECU file with a hac TXT file for reference.

All thanks to some great members here and on dyi-efi who went out of their way to help me on this. Thank you VERY much:hail:

Now I just need an ADS data stream for for data logging when I start testing. Hmmm.......since running the $8F on a 730 does not require and re-pinnning would the 730 ADS file work you think?

 

when you have all the the .bin .ecu .adl and the .txt file Zip them and upload them to moates.net if you would. Please

 

Just because a 730 is a 730 does not mean that all code that runs on a 730 has the same pinouts. Nor does it mean that the ALDL streams are the same.

This is why running $58 on a former $8D wired vehicle requires some re-pinning. And why a '90-'92 3.1l f-body has a different pinout then the '90-'92 5.7l f-body, even though they run the same ECM. The same is going to be true for this swap.

Find the ALDL.ZIP file (Moates or diy-efi), it has the data streams defined.

RBob.

 

A refee can't do that, from the last material I read on the matter. He can wavier the car, if you jump thru all the hoops involved with keeping him (the state) happy, but to actually approve anything means a EPA test cycle and going to an emissions lab such as Edlebrock now has. And there's no one willing to run EPA test cycles for hire, for the average guy, that I know of.

The EPA/ CARB have gotten out of the testing business, and have sold the rights to being able to do them to private parties. It's just more profitable to fine firms over paperwork, and alledged transgessions rather then have to do their own work. Sadly, emissions is at all about emissions anymore.

 

I am sure this has been asked befor but, I don't see why a 2bar patch of some sort been made for the 8d? (I of course don't know enough to under take this task) the way I see it and I am sure I am missing some thing is..... all our maps use the 5v ref. so if you go from a 1bar to a 2bar then you just change the tables ?

 

But you lose 50% of your resolution since the tables now have to read 2x the range.
Some folks have just plugged a 2 bar MAP in and disabled the various map related error codes. Not the way I'd suggest doing it by any means.

The key isn't just getting something to work, it's getting it to work properly, or as well as possible.

Or as Doc says, Simplicity is only good when it's complex enough.

 

even the $58 will only have the same resolution but, the stock ecm uses the purg and egr properly. the egr does help