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.
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