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EagleMark
11-14-2011, 03:34 PM
1228746 ECM Information $61 This ECM was used in 1989 to 1992 F and B Cars, LO3 (5.0L) and LO5 (5.7L) engines.

Some B cars, Caprice, Buick etc... used 16136965 $62

Click Here for details on how to read error codes known as Check Engine Light (CEL) or Service Engine Soon (SES) can be found in this thread. (http://www.gearhead-efi.com/Fuel-Injection/showthread.php?3-Checking-for-error-codes-and-troubleshooting!&highlight=troubleshooting)


*Work in progress*

EagleMark
11-14-2011, 03:35 PM
Wiring diagrams for the 1228746.

EagleMark
11-14-2011, 03:57 PM
TunerPro Definition files for 1228746 ECM $61

EagleMark
11-14-2011, 04:02 PM
Here's a few bin files I have for the 1228746. These are known good bin files. There are many bin files recalled by GM and superceded with a new BCC. The chip would be replaced in your ECM so the BCC code on the ECM cover could be wrong. Need to look for BCC on chip inside ECM cover.

Still need good bins for 5.7L Auto and Manual.

I don't have any records for it being used in 4.3L or 7.4L engines.

EagleMark
12-05-2011, 10:09 PM
More bins...

EagleMark
03-12-2012, 06:28 PM
$61 Hac Disassembly 1228746 ECM