Remanufactured Engine Control Module with Original Equipment (OE) # 1226865, 88999123 The PROM(s)/CALPACK must be transferred from the original module to the replacement module Additional relearns (theft, crankshaft, idle, etc.) may be required
1986 GMC K2500 equipped with 5.7L V8 Gas OHV
Remanufactured Engine Control Module with Original Equipment (OE) # 1226865, 88999123 The PROM(s)/CALPACK must be transferred from the original module to the replacement module Additional relearns (theft, crankshaft, idle, etc.) may be required
