16197427 Memcal vs 16196395 Memcal

[corvairnut]

what all are the applications of the MEMCALs that don't work?

and what engine are they being used to run?

OK... I feel stupid now. For some reason I was under the impression that 7427 didnt have CPI applications and the BCC listing confirms that it does. thanks Robert for making me look twice.

Does anyone know why the CPI memcals will not work on my $OD bin file. I have 4 that I already modified for the chip and I might just put these on the shelf for awhile.

thanks

[1project2many]

This sounds familiar. Did you mention this issue a while back?

We are still learning about memcal internal circuitry and every piece of the puzzle is important. There appears to be a relationship between memcal internal wiring and injector firing strategy and that may be part of the issue here. Can you read the small numbers on the knock board? Also, is there a date on the memcal label or maybe in the .bin? Did you look through the scan data while the engine is running? Did you see any unusual readings? Do you happen to have a picture of the memcal that shows the blue and white chips? And finally, were the working calibrations from CPI engines or were they from TBI engines?

Sorry to pose questions instead of answers but maybe this will help unravel the memcal mysteries for everyone.

[pmkls1]

Ummmm, this is kind of a dumb question, but could the difference in the memcals be one is for a 6 cylinder engine vs. 8 cylinder engine ?

[corvairnut]

I burn my bin file to chip and place in Memcal. I know it would matter which memcal i used for limp home mode, but Im using DIS with timing offset, so my bet would be it would not matter as my 6 cyl memcals have a almost non-existance limphome mode.

To restate my question/statement: I can use the NON-CPI memcals with my bin with no problem (V-6 or 8). When I use a CPI memcal, It will run pretty good at the 2000 RPMs and above and under load. Idle and low load situations, it acts like its loading up and as throttle is applied appears to burn off the excess. I hate to trash the CPI modules as I had already converted them to accept chips. Is it the fueling since I have 2 injectors and it someway CPI is using one?

I dont want to beat a dead horse, but I also hate trashing good chips.

Ted

[EagleMark]

I dont want to beat a dead horse, but I also hate trashing good chips.

Ted

But your also not given us info needed as asked above so we will never be able to figure it out.

[corvairnut]

But your also not given us info needed as asked above so we will never be able to figure it out.

Sorry.. I did not see that questions/requests from 1toomany above. BTW the chips that dont work BNBH, BHRD, BNKM (CPI).

The engine readings looked fine in tuner pro.... maybe timing was down about 5 degrees, but would not cause the issues I was having. With a TBI bin on a CPI memcal, Its almost like the engine is loading up at low load/idle area but fine in the upper RPM and higher load. When I run a CPI bin that I changed to my particulars, the engine surges at idle, so I never went any farther From my research on the issue before, the knock board is engine/trans specific and can be transfered to other memcals and did not appear affected by the netres chips. I have read and can document the differences in the chips on my next post.

thanks in advance. Let me know if you need anything else.

Ted

[corvairnut]

Bill Hamilton at binderplanet documented this awhile back. I tried it with another older chip, but failed to work. I want to see it this will work on the blue/white netres as this has to be it. This modification fires the injector every 4th DRP and would explain why im loading up at low load/RPMs with the CPI Memcal. Again, I hate to trash good chips that might can be modified. I will perform the mod Friday night after I get back in town. http://www.binderplanet.com/forums/s...d.php?t=101802

Ted