Cylinder select error

[dave w]

I'm wondering if the V6 Memcal will work with $8D, even if the cylinder number is set for a 6 cylinder? I've had cylinder select errors using a 7727 / 7730 V6 Memcal with $8D / V8 distributor. I modified the V6 memcal for V8 service and the cylinder select error went away. I've never tried using a V6 Memcal with a V6 distributor and $8D. An option I think I'd try; use a V6 definition with a V6 Memcal and V6 distributor and verify that setup is without errors.

dave w

[JeepsAndGuns]

I dont think there are any V6 $8D bins out there. The memcal I am using is from a $A1 car. But those are DIS. Are there any 7730/7727 V6 engines that still use a distributor?

[Six_Shooter]

I dont think there are any V6 $8D bins out there. The memcal I am using is from a $A1 car. But those are DIS. Are there any 7730/7727 V6 engines that still use a distributor?

Yes, '90 to '93 3.1 F-body.

But there are no ignition properties in the LHM side of the MEMCAL. In LHM, base timing is used, with no influence from the ECM, so ignition type really doesn't matter for original application.

[JeepsAndGuns]

Yes, '90 to '93 3.1 F-body.

But there are no ignition properties in the LHM side of the MEMCAL. In LHM, base timing is used, with no influence from the ECM, so ignition type really doesn't matter for original application.

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?

[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.

[dave w]

I dont think there are any V6 $8D bins out there. The memcal I am using is from a $A1 car. But those are DIS. Are there any 7730/7727 V6 engines that still use a distributor?

I've used distributors instead of DIS on the test bench without error. The DIS "Reference High Pulse" is the same signal as the Distributor "Reference High Pulse" being sent to the ECM. I think you will have the same results as I did on your test bench if you send the $A1 definition the V6 Distributor "Reference High Pulse".

dave w