Cylinder select error

[dave w]

So then, would I be better off using A1 instead of 8D?

I would try getting $A1 working with a distributor first, then I'd try figure out if there is a way to get $8D to work with a V6. Using a test bench is a good way to figure this stuff out!

dave w

[JeepsAndGuns]

Does anyone have a 7730 camaro 3.1L bin file? I didnt see one listed in the $A1 thread.

Edit: Well it appears those are $88. Why is the 90-93 camaros also listed in the $A1 thread? Was there both $88 and $A1 bin files for those engines in those year ranges?

[Six_Shooter]

Those would be $A1 wouldn't they?

Will $8D even run a 6cyl? If I am getting the cylinder select error with a V6 ($A1) memcal, then what memcal can I use with 8D and a 6cyl? Whats in the memcal that's making this error code pop up?

I chose $8D over $A1 because 8D is for a distributor and A1 is DIS. My engine uses a distributor.

Edit: You are correct, spent some time on google and the camaro 3.1's do use a distributor. Are those still $A1? If so, then A1 was used in both distributor and DIS engines?
So then, would I be better off using A1 instead of 8D?

Does anyone have a 7730 camaro 3.1L bin file? I didnt see one listed in the $A1 thread.

Edit: Well it appears those are $88. Why is the 90-93 camaros also listed in the $A1 thread? Was there both $88 and $A1 bin files for those engines in those year ranges?

As you found the 3.1 V6 F-bodies are $88. No idea why they would be listed in the $A1 thread.

There's no reason why $8D can't be used with a 6 cylinder.

[RobertISaar]

IIRC, a lot of the V6Z24 forum guys use 8D on their 3.1/3x00s.

i used to know why GM didn't move the F-bodies to A1, but i can't remember anymore.

[JeepsAndGuns]

So do we think the cylinder select error might be bin related or memcal related?
Anyone have a camaro V6 $88 memcal? I will try a $A1 bin on my test harness when I can get a chance, and see what happens.

[JeepsAndGuns]

Just read through dyeager535's tbi knock board thread and it got me thinking.
Since I am getting the cylinder select error using a $A1 V6 memcal, with a V8 $8D bin with the cylinder count changed to 6 cylinders, and getting the cylinder select error, I wonder if I could use a TBI 7427 4.3 memcal with a PFI jumper wire put in (just like I did for my 7427 mpfi on my cherokee) Wonder if that would get rid of the cylinder select error? A 4.3 is much closer in displacement to my 4.0 than the 3.1, so knock filter may get along better.

Also wondering, what exactly sets the cylinder select error code anyways? And why would I NOT get it running a V8 8D bin, with a A1 V6 memcal, but once I switch the bin to 6 cylinders, I suddenly get the error? Shouldn't it be the other way around?

[RobertISaar]

knock filter is created based mainly on bore size, so try and match up the bore of the 4.0 with the closest GM application.

cylinder select code is based on a couple of pins on the MEMCAL and what's stored in the PROM as the correct combination of pins either high(5 volts) or low(0 volts). it's only 2 pins in every application i've come across that uses them, so 4 possible combinations. 00, 01, 10, 11.