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EagleMark
12-07-2011, 04:04 AM
1227727 1227730 ECM Information $8D 1990 - 91 Y and F CAR 5.7L TPI

For information on applications using the 1227730 including wiring diagrams check out:
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?330-1227730-ECM-information

For information on applications using the 1227727 including wiring diagrams check out:
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?332-1227727-ECM-information

*Work in Progress!*

EagleMark
12-07-2011, 04:05 AM
TunerPro Definition files for 1227727 1227730 $8D

$8D-1227730-V1.1 adx and xdf by JeepsandGuns

1990 Corvette Y car adx by captiankawasaki
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?1926-Shut-up-CCM-and-Dash

EagleMark
12-07-2011, 04:07 AM
Bin files for the 1227727 1227730 $8D

EagleMark
12-07-2011, 04:17 AM
Super AUJP Files. Please download these and read the credits for who made them. These are noted as Copyright documents for personal use only.

EagleMark
03-13-2012, 04:12 AM
$8D Hac 1227727 1227730 ECM and extended VE fueling tables

EagleMark
04-26-2012, 01:57 PM
Spreadsheet made by Dave W to adjust VE fuel tables from BLM readings.

Thanks Dave W! :thumbsup:

EagleMark
09-06-2012, 06:27 AM
$8D Source code comented AUJP

Donated by JP86SS! :thumbsup:

EagleMark
08-23-2013, 09:22 AM
More $8D goodies from 84Elky! :thumbsup:

Along with another write up with updated files on Knock Counts and Knock Retard Degrees – AUJP $8d
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?1469-Knock-Counts-and-Knock-Retard-Degrees-%96-AUJP-8d


***Updates 10-10-21 from 84Elky are posted here: http://gearhead-efi.com/Fuel-Injection/showthread.php?10276-Log-Analyzer-Quick-Tuner-Tuning-Made-Easy&highlight=quick+tuner

84Elky
10-09-2013, 03:56 AM
Have found the culprit it the Fan Enable/Disable temperature logic of the AUJP $8D code. It appears this code was developed with the thought that no one (except me) would ever set the Disable temperature >= the Enable temperature (while testing or otherwise).

Bottom line, if you do so, the fan(s) will run, but not at full speed because they are constantly being turned on and then off every 200ms. Seems they would have programmed this differently, but at the time they probably assumed no one would ever be changing such values – but it’s still not good coding.

FWIW - Attached are Fan 2 flow logic documents highlighting the issue. Fan 1 is identical to Fan 2 except for Fan 1 run-on times which do not apply to Fan 2, as those values are set = 0 in AUJP.

See here for other details:
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?2326-7730-ECM-Pin-F8-Question
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?2353-More-Fan-2-Wiring-Problems-and-7730-Pin-F8

84Elky
03-10-2014, 01:43 AM
EDIT 3/23/2014 -------------
A new Version 3 of the AE Document has been uploaded. The "Fuel Out – Single and Double Fire Flag Logic.doc" document previously uploaded separately has been incorporated into Version 3 as an Appendix so it's no longer provided separately.

It's important that all prior versions of these two documents be discarded as they contain an error with regard to injector firing. Many thanks to RBob at ThirdGen.org for his contribution to the corrections.


Version History

Version 3 March 23, 2014

Corrected the Injector Firing Process section to properly reflect how the injectors are fired.
Incorporated the Fuel Out Routine document previously published separately into this document as Appendix E.


Version 2 March 11, 2014

Page 4, under Fuel Summary, changed the PW required to invoke Single Fire Mode from 1.1ms to 0.85ms to correctly state the proper transition PW.


Initial Version February 13, 2014

================================================== ================

Like many, based on the number of posts, I too have been struggling with Acceleration Enrichment. Still am. So some time ago decided to dive into the AUJP $8D code in an attempt to understand what goes on under the covers. Bottom line - a lot! Many pages of notes produced during the process were converted into a document for my reference. But decided to post it in hope it will help others using this code mask.

Every effort has been made to check and double check to ensure accuracy. But life happens, so would appreciate feedback on anything that appears incorrect so changes can be made.

Hope this helps!