Auto vs 5sp SBEC II

[bhazard]

Theres large chunks of the silicone insulator stuff missing from the board in the burned out ecu. Im thinking maybe water might have got in there and fried it or something.

Would anyone be interested in a working 1991 auto sbec?

[Boogieman142]

yeah, i've just unplugged the trans harness and left it there as well, its got like 20k on it now.

[phantomrt]

Quote:

Originally Posted by crazymadbastard I have 2 sbec IIs the one in my 92 5spd gtc is 471-4122 2731/9:27 I bought another for a spare 471-4121 1941/9:20

You are awesome. 471-4122 is the same number as all of mine. 471-4121 is an automatic SBEC-II. My sources say that it is the other way around, but I have found a lot of evidence now to contradict it.

To clean the lettering? I'd wipe it clean with a rag and hope for the best. One of my computers has had the potting goop cut away and a chip replaced in it. A socket was installed and it was re-potted to the bottom of the socket. How it got that way, I have no idea. It is like it was remanufactured at one time. It runs the car just like all the others, so there is no noticeable change in calibration.

[crazymadbastard]

Quote:

Originally Posted by phantomrt You are awesome. 471-4122 is the same number as all of mine. 471-4121 is an automatic SBEC-II. My sources say that it is the other way around, but I have found a lot of evidence now to contradict it.

So the 471-4122 is the high torque sbec II then. I will send the 4121 for a cal and keep the original as a spare. If I get bored, I will swap the sbecs to see what happens.

[Blue Iroc R/T]

Quote:

Originally Posted by crazymadbastard I have 2 sbec IIs the one in my 92 5spd gtc is 471-4122 2731/9:27 I bought another for a spare 471-4121 1941/9:20 Those stickers are hard to read so I hope those are correct. Anyone know good stuff to use to clean the stickers and not lose the print?

If the numbers are missing, open up the case and clean the potting in the lower right corner. There is a rather large rectangular chip that has the part number printed on it that can be seen thru the potting.
At one time, I did have 5 SBEC-II's. Two in cars and 3 spares. I sent one to Paul Velkey for a re-cal 2 1/2 yrs ago and can't get it back from him. Then I sold one to Austrain Dodge (here on the list) and also sent it to Paul Velkey and can't get it back either. One of the two cars is not gone to State Farm and I now only have one in a car and one spare. Both are 467-2165 which is for a G-Body Auto. We are presently running this computer in a 93 Daytona 2.5 Turbo. It was with a Automatic and is now a A568 5 spd. Not having any problems with it at all.
When Paul (phantomrt) and I did a pretty extensive research on this a couple years ago, I think we determined that the 471-4121 and 471-4122 are for the "AA" Body and "P" Body. The 467-2161 (Manual) and 467-2165 (Auto) are for the "G" Body and "J" Body.

Like Paul said, 92 was just a bastard year.

[bhazard]

Unfortunately for me.

[crazymadbastard]

Quote:

Originally Posted by Blue Iroc R/T I think we determined that the 471-4121 and 471-4122 are for the "AA" Body and "P" Body. The 467-2161 (Manual) and 467-2165 (Auto) are for the "G" Body and "J" Body. Like Paul said, 92 was just a bastard year.

I going to pull the covers, for what it's worth, the 4122 in the gtc works the cruise control ok. I will verify what happens if I press the clutch pedal in while in cruise(iirc, the engine revs up big time)

[phantomrt]

Ralph, we have to find that T-1 IROC, for the engine computer alone. You might want to try talking to a used car dept manager somewhere--they may know what State Farm does with their cars. I would have hopped in the truck and followed the tow truck that hauled that car away. Or maybe just ask them. At auction, I cannot picture that car selling for more than $500 which is getting dangerously close to scrap value.

I have quite a bit of data to say that the 471-4122 and 471-4121 are not intended for the AA and P body cars. My Lebaron is, from what I can tell, all original and I've owned it since 2001 and 98,000 miles. It could have seen an engine computer change, but I'd say it is unlikely. The car DID see a head gasket swap before 98,000 miles... I found a failed Felpro in there at around 130,000 miles. The car now has 148,000. Very much unmolested.
The other two computers I bought from people via internet, who claim they were 5spd Daytonas.

There is one other person local to me who recently joined our MNSDAC club w ho has a '92 GTC convertible just like mine except white in color. I am waiting for him to get back to me on the SBEC part number. I guess their family has owned the car since new, it has seen only one winter, so if that is true.... I'm gonna PM him again.

[bhazard]

Well, I got a 91 auto computer from a spirit in the yard today and guess what, the car runs, like a champ at that. I dont know the number on this sbec, the sticker is worn away pretty good, and I couldnt get it open to check inside, but the car runs.

[topdollar69]

Will the lock up converter work on the 91 up automatic cars if your running a 5spd computer?

[phantomrt]

Woo hoo. P-body simplicity saves the day! See if the cruise control works, if at all, if the car even has it.

[bhazard]

The cruise dont work.

[Blue Iroc R/T]

Quote:

Originally Posted by topdollar69 Will the lock up converter work on the 91 up automatic cars if your running a 5spd computer?

I don't believe the TC will lock up if running a 5 spd SBEC-II. I'm not POSITIVE, because I am running the opposite; running a 5spd with a Auto SBEC-II.

[phantomrt]

Interesting....
This discussion has gotten me back into re-studying the wiring diagrams. I have no factory service manuals, which are by far the best, but as I look at the wiring diagrams from Mitchell, the 1992 P-bodies cruise control circuits are substancially different than the 1992 G-body circuits. Weird, huh?
The 1991 P-body cruise control circuit looks similar to that of the 1992 G-body cruise control circuit. I wish I had all the answers to satisfy my curiosity.

But, I'd say that cruise control operation is the least of your worries right now.

[bhazard]

Not too worried about it now, but any idea how to get it to work with the 91 computer anyway?