1227747 ECM Information $42

[EagleMark]

1227747 ECM Information $42

This ECM was used in 1987 to 1991 C/K Truck, Van, 4.3L, 5.7L, 5.0L & 7.4L engines.
$42 Mask

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.

*Work in progress*

[Dieselsj]

Just wanted to add to the library for 7747 ECU.

AZFW - 7.4 R-V chassis/Manual/4.10-4.56

This one supposedly had EGR and AIR disabled, however I could not see that in the tables anywhere. There is a patch listed for it but it would not install.