Reading all the posts for the 749 ECM conversions etc. I have recently repinned my computer for the 749 and running a Vortech with 7lb of boost. Running pretty well right now, but I was wondering if anyone has combined all the code etc to run the charcoal canister & the air divert valves for pollution. I have seen posts that people may be trying this just wondering if anyone has? Also wondering if Grumpy may have this in the $60 stuff I've been reading? Thanks

 

Ya know, along these same lines, I wonder why people don't use the $8F turbo Gran Prix code? Doesn't it have that functionality?

I do know the $58 ($60) is pretty basic, and that seems to make it run better.

 

Also, funstick may have run into something that may be useful in all this.
Read this post:
https://www.thirdgen.org/techbb2/sho...hreadid=250915

 

The 8F, IMO, is awfully bloated. It's hard enough doing a really good calibration with even a stripped down Mask.

I believe an archive search here will give the details for the v8 airflow correction for v8s.

IMO, the less code the more the ecm likes it. The trick is finding what's really needed to be min code. While you can strip some out, it fubars other things, so you might have to add a little to subtract alot.

 

Doc1of7
Junior Member

Registered: Jul 2004
Location: Corner of Fantasy and Denile St
Posts: 10
Car: 1958 Woolsey
Engine: DeLoean V6 with turbos
Transmission: Not needed

< scritches head... Knows Grumpy's outta town, wonder if he knows Doc's got out again > Bob

 

Saturn 5 I don't get your post??

 

Grumpy's always commenting on Doc getting out and causing chaos at CSH (cone shaped headquarters). It's a inside joke that goes back to the diy-efi list. Bob

 

Glad I wasnt the only one thinking abstract there saturn5 :-)
lol

Prom related info, Formula engine is in chronic blowby and getting worse, speeding up plans for a boost capable 383 to take its place and upcoming 749 if I hairdryerize it

later
Jeremy

 

***uming its like my tbi ecm and set up the same way then so long as teh execution time of the code fits in between interrups then anything less would mean that the computer would just be smoking a virtual cigarette while it waits for the next interrupt. The plus side to having free time is that you can make it do other stuff useful rather then executing all the code that would otherwise be unused in a performance setup.

 

The $8F code runs in the 727/730 ECM. It is a fully featured calibration for cars. Has a full suite of smog stuff (AIR, EGR, CCP), cat-con protection, along with boost tables and boost control.

For someone requiring the smog stuff wrapped in refined code it is a good way to go.

RBob.

 

Thanks RBob. Do you know where I can get a base file for it? I'd like to try it out. Also for the CCP and Air divert wiring, will it be the same as the 730? Thanks

 

Check the omni-present bin library, there may be a file for it there. As for wiring it needs to be wired as the $8F mask requires. Wiring isn't dependent upon the ECM, it is dependent upon the maskid. Should be able to find the wiring on the diy-efi site.

RBob.

 

Untrue! !!.
It's just internet folklore!.

I just get blamed for everything the big guy messes up.
Luckily word has it the Quick Start is operational for the GN so he should get off my back for at least a day or two. FWIW, no code changes needed, so ayone running a 148 can update to the later PCMs/ECMs, with just some simple machine work. Just need the adapter ring, and a late model set of interupter rings, and sensor.

Rumor has it the engine does *Quick Start*.

 

Hmmm... Sounds like the trip to Scott's went well..

So Doc... got any pics of this delorean boosted Woolsey? Thats gotta be one of the oddest combo's I've seem for awhile.. Other than one of my projects.



Bob

 

$8F, wait a second, which ECM # is that native too so I can download the bin and the .ecu?

I did a search and didn't find much. If it's true it will run in a 730 and everything still works like all the emissions stuff, why are we still using the $58? And what would be the difference in the $60 compared to the $8F? I know the $60 is opensource and we can add/remove tables from it however it appears the $8F already does everything most people would need, it even supports DIS. What am I missing?

Anyone here actually have a working $8F in a 730 who can comment on what features work and don't?

 

$8F is native to a 1227727 ECM under the hood of a Turbo Grand Prix 3.1l V6. The 1227730 is the under dash version of the '727. Only need to match up the pin functions between the two ECMs and the $8F mask is a drop in for the '730.

The $58 & $60 is great for folks that run a the track, or have an older car, or have a truck, or. . . just do not require any functionality not already there.

There is a commented hac of $8F around too. . .

RBob.

 

$8F is native to a 727. Other than the weather pack connectors, and case a 727 is note for note the same as a 730.

The difference between a 749 and a 727/730 is the additional injector driver circuit is populated, however a quad output driver chip is deleted. (You could unsolder one from 730 and add it to a 749, easier then adding the driver circuit chips/parts)

$58/$60 code simply works.. No bells/whistles, or cutting julianne french fries. There is a school of thought that says less is more.

However for those imprisoned by emission ****'s, it is not the best route to take unless the needed parts internally (aka adding a quad driver to a 749) and code routines are added. Bob

 

Got it! I'll definantly be spending some time tonight looking into the $8F. Being in CA I need all that *other* stuff

Thanks!!!

 

Thanks for the info. As I read it, I could use the wiring for a 730ECM and run the $8F code it in to run everything for my Vortech. That way I'll have pollution & CPP stuff.

92GTA let me know what you find, and I will let you know as well. Cheers

 

With a V8 running a distributor, there are a couple code changes that need to happen, at least from what I understand, since the $8F is for DIS. Exactly what, I still don't know, that's a future project for me!