95 Camaro PCM harness connectors anyone ?

[keitholivier]

Hi

I'm putting a 3400 V6 from a 2004 Montana into my Toyota motorhome. I intend to use the 40L60E tranny from a Camaro that had a 3.4L V6 and so I thought I would start out with the PCM from the same car.

A lot of postings later and it is now indelibly marked in my brain that the 3.4L V6 is not the same engine as the 3400, however, for $30 the Camaro PCM will make a very simple and inexpensive transmission controler and in fact should be fine for getting my motor operational, even if not in the best state of tune.

To solve the longer term tuning optimization issues, I will probably go the piggyback megasquirt route, but in the short term, I want to get started with the standard PCM.

My problem is I am having a hell of a time finding anywhere to get the 3 PCM harness connectors. Tuning shops and harness makers have boatloads of the PCM connectors for the V8's but nobody seems to have the connectors for my (untuneable) 94/95 OBD1.5 PCM. They are 32 pin connectors (2x16) with slightly different body keying so that they can't be switched around by accident.

If there is anyone on this forum who may have yanked his 3.4V6 to put in something better like the twin cam engine or a V8 and who has the set of 3 PCM connectors lying around, I could really use them.

Or if anyone knows where these connectors are to be found, this info would also be appreciated. Thanks, Keith

[bszopi]

I have the info I think you need, but I need to find it. And my daughter is bugging me to play the computer. I'll get it listed later tonight.

[bszopi]

Here you go... Verify the PCM PN matches before you order anything.

16156397 Harness Plugs: These are available from GM Parts Direct for ~$112 (plus S&H). You will need all of the following parts:
o 12129025 (x3) : $4.26 each
o 12129021 : $0.97 each
o 12129022 : $0.97 each
o 12129023 : $0.97 each
o 12129028 (x3) : $2.13 each
o 12084913 (x ~75) : $1.20 each, come in packs of 5 ($6.00/pack)

I can see if I can find pictures in a bit. You also might want to contact blackbombshell95, as he might still have some of these parts, as well as pictures.

http://60degreev6.com/showthread.php?t=34791

[keitholivier]

The bar coded sticker on the PCM lists 3 different numbers:
On top it says:
Serv No: 16184737 BNFM

and next line down 16212614 BNFM

At the very bottom: *86BNFMK442850998*

On my invoice from the salvage store they give the following information:
1995 Camaro VIN#2G1FP22S4S2128705 3.4 ATOD

[keitholivier]

I did a quick search on my PCM number: 16184737 and it came up on a pdf file from kemparts.com. Their listing confirms that my PCM number fit the 94-95 Chevrolet Camaro.

Could it be that the PCM number mentioned (16156397) is the FWD version simply adapted for the 4T sieries transmissions ?

[bszopi]

Do a lookup of the PNs (the ones for $0/97 each) on the following site:

http://connectors.delphi.com/DCSGDMCS/HomePage.aspx

There, you will be able to see the technical drawings for those connectors and compare them to your existing connectors.

Even better, here is the Delhpi catalog, with which I used to find those PNs originally.

http://connectors2.delphi.com/dcsgdm...nectioncat.pdf

[keitholivier]

Mr bszopi Thanks, this is great information. I always marvel at the amount of work individuals had to put in to decipher all this information. I will compare the connector keying with my PCM tonight just to be sure. I have one black, one blue and one that is either white or tan (hard to tell). It seems that it is the conector sockets that is the major expense. Are these things gold plated or what ?

best regards
Keith

[bszopi]

Yeah, they aren't cheap. If you can figure out how many pins (sockets, whatever you want to call them) you actually need, then just order that many plus maybe another spare bag and you should be good. To control a tranny, I wouldn't except you need more than a dozen or so. Just remember that you will also have to connect various engine sensors as well that the tranny requires for proper operation. Below is a link to the description for a 4T60E, but I'd assume the 4L60E would need the same inputs...

http://60degreev6.com/Articles/Transmissions/4T60E/4t60E_elec.jpg

[keitholivier]

Well, here is what the order came to from GM parts direct:



Not cheap, but whats a man to do.....

Onward and upward....

[bszopi]

You ordered 80 of the pins?? I thought you were just going to use it to control the tranny? Or are you changing your mind now?

[keitholivier]

Engine and tranny for starters with the GM PCM. There are 3x 32 pin connectors and I haven't yet figured out how many pins are unused. I just don't want to have to run a second order and pay another $20+ for shipping a handfull of pins if I run out.

Megasquirt 2 for engine control later. If the GPIO board gets done this year, I might actually be able to replace the GM PCM completely, but as most folks know the GPIO board development has been dragging for the last 2 years. There are a few developers working on software for the 4L60E since it is such a popular tranny, so I'm hoping this year will finally see some progress.

I need to be able to continue to use my motorhome and I need a short term way to get both the 3400 engine and the 4L60E tranny working so this seems a relatively simple solution (not fully optimized of course).

By the time I have worked through the engine and tranny install, I would probably appreciate not having to tune the ECU right away (gotta let that knuckle skin grow back first...)

regards
Keith

[BMC]

I have used the 3.4L L32 94-95 PCM in MGBs- pretty light cars, without any major issues on the stock 3.4L iron head motors. Of course we use them with the T5 and not th e4L60-E, so there probably is a difference. Also, we have had good luck running the same style of PCM sold on car-part for other FWD 3.1L motors with alloy heads without problems. Get that!! And people say it cant be done or there will be major undriveable issues!!

You are running the opposite way- the alloy head with the iron head PCM. I dont know what that will produce.

-BMC.

[95 V6 J body]

A good source for those connectors is also www.mouser.com

[ForcedFirebird]

The 700r4 is the same transmission, just not electronic. You could then use OBD1 and tuning equipment to simplify things.MS and 700r4 would be all in one box as well.

Do you really want two ECM's in a vehicle that you are building? Just a thought.