1227748

This is a reduced cost P4 ECM which has a bare EPROM socket rather than a MEMCAL.

Used in:

• 1987-91 2.0 OHC L4 TBI "K" LT2
  
• 1990-91 2.2 L4 TBI "G" LM3
  
• 1987-92 2.5 L4 TBI "R" LR8 (exc. W body)
  
• 1987-91 2.5 L4 TBI "U" L68

.ecu files describe the layout of tables and data items in a PROM image. There are several image editing programs that use .ecu files in conjunction with .bin files to allow you to edit the tables in a prom image in real world units rather than hex. Promedit and Winbin are two examples.

Prom images are listed by broadcast code, which uniquely identifies the application of the Prom (Engine, transmission, rear end, ECM, ec.)

• ABLT6730 87 2.0 "K" auto VSS=2000ppm
• ACMA9517 auto, VSS=4000ppm
• ACMB9524 auto, VSS=2000ppm
• ACMC9528 auto, VSS=4000ppm
• ACMF9538 87-88 Fiero 2.5 "R" auto VSS=2000ppm
• ACMH9544 87-88 Fiero 2.5 "R" stick VSS=2000ppm
• ADSJ2829 auto VSS=4000ppm
• ALWM6770 87-88 Fiero 2.5 "R" auto VSS=2000ppm
• ANAM1667 auto VSS=4000ppm
• ATBS3453 87-88 Fiero 2.5 "R" stick VSS=2000ppm
• ATXD7724 91 2.2 "G"