J Page 3 f 4 Engine control modules for 1992 L Car with LN2 2 2 4 engines will incorporate EEPROM s Electronically Erasable Programmable Read Only Memory instead of conventional PROM s affecting service ability ECM s equipped with EEPROM s will be serviced by a common module together with the EEPROM that must be programmed or re programmed for a vehicle s specific applications The applications are determined via the vehicles s diagnostic center and the EEPROM is programmed using in dealership technology from GMSTG Service Technology Group 5 Remanufactured carburetors replace original equipment carbure T tors Usage statements will be in their respective group in the text A cross reference chart of OEM to reman service numbers is located in the reference catalog 6 Tire options that appear in the usage statement will also display wheel size r 7 Service Wire Harnesses in Groups 2 480 and 2 525 may contain many more connectors than required Those connectors not required should be taped back 8 Distributor assemblies are no longer available for complete replace ment Only component parts of the distributor will be available for replacement 9 1992 Air Conditioning Compressors will be serviced only as an assembly Internal A C Compressor parts will not be available for service beginning with the 1992 models External A C Compressor parts will continue to be serviced 10 As current stock of all blower motor impellers fan is exhausted replacement impellers fan will be a pressed on fit rather than attached with fasteners The corresponding blower motor must also be ordered with the new impeller fan ADDITIONAL INFORMATION 1 Allied assembly numbers previously listed in charts in the catalog P text will now appear in the updated casting to service number reference chart in the reference catalog r