1981 V8-6-4 equipped vehicles were produced with two generations of ECM'S. These ECM's and their respective PROM's are not interchangeable as explained in Serviceman Bulletin 81-14. Vehicles must be equipped with the specified ECM, PROM's and other DFI system parts to meet emissions and driveability requirements. The chart below is a summary of present service parts usage as updated to include the PROM changes described in Serviceman Bulletin 82-7 and 82-8. This chart updates the GMWDD Parts Catalog, dated 12/82, and Serviceman Bulletin 81-14.
1981 V8-6-4 ECM/PROM/DFI Parts Usage Tables
First Generation ECM's "C"-Fed "C" Cal "E/K"-Fed "E/K"-Cal "D"-Fed ------- ------- ---------- --------- ------- Broadcast Number 100001 100001 "E"-600001 "E"-600001 100001 Through Through Through Through Through 130880 143985 616866 617927 130880 "K"-680001 "K"-680001 Through Through 690461 691350
ECM Service 1224760 1224760 1224760 1224760 1225120 Part Number
PROM Service Part ID PROM #1 5785LW 5785LW 5869BH 5779KB 7087LY PROM #2 5786LW 5786LW 5884BH 5778KB 7088LY
PROM Service 1225772 1225772 1225866 1225773 1225125 Kit Part Number
Throttle Body 17067142 17067142 17068019 17067144 17067142 Service Part Number
EGR Valve 17067107 17067107 17067108 17067110 17067111 Service Part Number
Injector 17067976 17067976 17067976 17067976 17067976 Service Kit
Second Generation ECMs "C"-Fed "C" Cal "E/K"-Fed "E/K"-Cal "D"-Fed** ------- ------- ---------- --------- ------- Broadcast Number After After "E"-After "E"-After After 130880 143985 616866 617927 130880 "K"-After "K-After 690461 691350
ECM Service 1225120 1225120 1225120 1225120 1225120 Part Number
PROM Service Part ID PROM #1 5860KK 5860KK 5853KJ* 5853KJ* 0050AAF PROM #2 5861KK 5861KK 5854KJ 5854KJ 0051AAF
PROM Service 1225775 1225775 1225774 1225774 1225298 Kit Part Number
Throttle Body 17067142 17067142 17067144 17067144 17067142 Service Part Number
EGR Valve Service Part 17067107 17068210 17067108 17067110 17067111 Number
Injector Service Kit 17067976 17067976 17067976 17067976 17067976
*PROM ID 7080KJ is also acceptable.
Includes 1982-1983 "D"-Fed, Engine Code "9".
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.