Sorry for the bad grammer on the thread subject header.:lala:

I found this post on the 454ss board and thought it was pretty interesting. Go here . There is a web site at www.gmpcm.com but I couldn't get it to come up, I think it has to do with my slow and decreped gateway pc. Just wanted to know what you all thought about this conversion and doing away with the 8746ecm that is as slow as an lo3, as far as the data buad rate anyway.

Steve

 

The 7060 is a slick PCM.
Period.

I have one in my truck that I've spent some time getting to know it, all to well.

I see in that thread thou, there is still a problem about the VSS, when going to the optical sensor from the magnetic. On a TCC car that's a hangup.

But, there is a product pending that might cure that. Or just use one of the B+M TCC management deals. I don't know if the 85 code uses the VSS for an IAC reset thou.

 

Here's our solution:


http://www.454ss.com/cgi-bin/2004for...num=1073759410

 

Hey VA454 what are you guys useing for scanning software?

 

VA454SS, how long have you had this done and how well is it working out for you?

Steve

 

But according to the other thread the speedo works but no scanner MPH, unless I misread it.

 

Upon installation of the 7060, the speedo worked, but the PCM didn't see vehicle speed.

The fix is as posted. Jumped the wire that feeds the speedo from the VSS and fed it to the 7060.

Personally, I've just finished the install. Haven't had the opportunity to do anything other than start the truck. I refuse to test drive it in the freezing rain/snow with the drag radials

I still need to install the jumper wire from the VSS and change the knock sensor.

Another member has his up and running, and is in the process of tuning.

He is using Datamaster.

 

Where abouts are you?.
I'm really interested in how this turns out.

 

What cars did the 7060 come in (or was it only trucks), and what buad rate is it (same as 747)?? I'm guessing the only advantage is the electric tranny control.

 

No it's a PCM.
One full generation newer in engine management, well actually Powertrain management.
8192 ALDL.
The code is much more refined, and well it just works really well.

 

Don't know all of the applications, but I know it came in 91-93 454SS pickups. I'm sure it also came in heavy duty trucks of the same years, but they had do have the 480LE. If they have a manual tranny, they still use the 8747.

I grabbed mine from a recycler on the internet. $57 to my door

 

The 85 code was used from 91-93, in both the 7060, and the 16127470.

The 8747 stopped being used in 92.

According to TC site.

 

Can you disable the tranny control (shifting, but not TCC) if desired...?

How many of these things are "out there" (how many 454SS/heavy-duty trucks were built?)

 

I would also think you could find one in a 350 equipt truck with the 4l60e trans.

Steve

 

Update:

I just ordered the AutoProm to tune with

Already have my wideband 02 awaiting installation.

This is gonna get fun real soon. As soon as the weather breaks, that is

 

I haven't seen a .ecu for the 85 code yet, so I was using Tunercat with Autoprom on my truck with the 7060. It was like alomost too much fun. It's really easy to get ahead of yourself doing that, gotta work on taking a notebook, and once inna while stopping to note what ya did.

 

Thanks for the advice. I had already started taking notes when I was using the 8747 and scanning with my SnapOn scanner.

 

PCM-6 with 4L80E Tranny (HD)
Engine Usage:

4.3L TBI LB4 (VIN=Z) 1991,92,93

5.7L TBI LO5 (VIN=K) 1991,92,93

7.4L TBI L19 (VIN=N) 1991,92,93

 

Any takers on creating one? I have the information required for it. =)

Maybe I should do it? (Grrr... takes a while = less features in the next version of TunerPro!)

 

I'll do it, just a matter of when, was trolling for someone that kew these things to leap up. BTW, there's like 3 different data streams, for the 7060.

 

As I understand it, the one I need is A138.

 

The possibles are
106
138
150
177
179

The 106, and 179 are 160 baud, so that would seemm to be a C3 ecm.

The other 3 are all 8192s.
WIth the 138 using a slave and master response.

In hooking up Diacom it gives 3 options, and it's the light emissions package that links.

Well that was one way to kill some time <g>.

138 seems most likely, how did you come up with it as an only answer?.

 

I can't seem to find a pinout for the 7060, just wondering how it differs from the 747. Anyone see problems with using a non electronic tranny??

This 8192 baud would sure be nice compared to my 160!!

 

A bunch, since there's the tranny stuff. Still a 24 and 32 pin connector.

If the VSS cure from above works then just disable the trannie codes and go.

Thou, using the 749 gives you a MAT that actually means something, and 8192.
But then again, the 7060 is a sweet piece.

 

I was just thinking that it would be nice to go to a E tranny int he future. I would think it to be harder to use sy ty code with the 749.

 

E tranny means using a PCM.
749 is a ECM.
7060 is a PCM.

 

How about 8625 & 7427 they are both E trans PCM's ('93 & '94-'95)

 

I know the 749 is an ECM, but with all the boost settings , I would guess it hard to set up for NA.

 

Its what's used in these applications, of which mine is one:

PCM-6 with 4L80E Tranny (HD)
Engine Usage:

4.3L TBI LB4 (VIN=Z) 1991,92,93

5.7L TBI LO5 (VIN=K) 1991,92,93

7.4L TBI L19 (VIN=N) 1991,92,93

 

https://www.thirdgen.org/techbb2/sho...threadid=38951
So as not to confuse this tread, could everybody be a bit clearer on what application this pcm would be applied too.
The only difference I see between the 7060 and the $0D mask 6930 pcm is that the 7060 has a 32k eprom while the 6930 has a full 64k eprom. Oh, and the $0D mask hack is public domain. Is there one for the 7060? I've tuned a stock suburban with the 6930 and from the looks of the hack file, the ecm could easily be adapted to a lighter vehicle like a thirdgen.
Grumpy, FWIW, in reply to the old post linked above... maybe GM is just evolving there hardware. There was a 7747 for trucks and a 8746 for cars (tbi) that if tbi were still around in 95 that there would be a strong probability that they would share ecms to cut back costs.
What is the advantage of the 7060 over the 6930? The only thing that stands out to me is the required Romulator 2 price tag over the standard Romulator (good up to 32k).

 

Geesh, how old of stuff do you save?.
Yes, I think I saw hac for the 7060 might check Moates Site.
The logic in what GM does seems odd at times, and I think from time to time it's internal politics. They've never taken the easy way.

If the 6930 doesn't have a valid MAT for fuel and timing then I'd say nothing. So far I haven't found an truck PCM (memcal style) that does.

 

It's called the search button .
GM internal politics is huge in comparison to a company like Honda. Many of my fellow classmates and FSAE teammates work at Honda. We have a bunch of alumni that visit from time to time and they swear that GM and Ford are crazy. They say that because of there size they'll spend millions to save millions plus a penny. Honda on the other hand "suposedly" engineers there products better so as to rely littly on robust engineering practices.
I think we can all agree that it takes too long for a huge company to produce anything of quality and still be new and fresh (electronics included). Another example of GM being oafish is there reliance on truck sales. Let's hope that truck sales drop and GM has to drop the SSR from it's line-up . Again, another oafish plan set forth from GM too late to make a difference. Retro, 2 door, what is it, looks kind of like a childs play toy, more expensive than a vette and what, only an auto?!?!?!
I think the only good thing to come from such a large company is there ability to produce electronics (our ecms) in such quantities that they are dime a dozen and full of features. Oh, and the v8's still being around does bring a smirk to my face once in a while.
As for that hack file for the 7060, can you link me to it? I can't seem to find it on his site. Another question, can the trans controls be disabled with a switch or slight code tweaking? If that's possible then it'll find some homes in thirdgens but until then I think it's too much of a hassle for 98% of us.

 

OK, I thought you just had that one hand.

On the big issues, Honda is as bad as GM, IMO.
While Honda gets *new* stuff on the road quickly GM plays the long term game usually. Thou they're famous for the booboos they pull.

I would imagine just disabling the tranny malfunction flags would be enough.