Cutlass Ciera Cruiser V6-173 2.8L (1987)
The new MEM-CAL to be installed does not need or use the existing MAF signal; however, it does need and use the MAT signal.
A). Pull the underhood ECM continous power fuse or disconnect the battery and leave it
disconnected for at least I0 minutes.
B). Remove MAF relay, If applicable, and discard. Tape up connector to prevent water intrusion.
C). Remove current MEM-CAL and install a new service MEM-CAL.
D). Restore the battery power and place air conditioning controls (if equipped) in the "off" position.
E). Firmly apply the parking brake and block the drive wheels. Start the engine, and shift the transaxle to "drive" for automatics or "neutral" for manuals.
F). Allow the engine to run until the engine cooling fan has cycled once, or a maximum of 10 minutes.
G). Turn the Ignition key to the "off" position for at least 5 seconds.
H). Start the engine, and shift the tranaxle to "drive" for automatics or "neutral" for manuals.
I). Allow engine to run for at least 5 minutes.
After a MEM-CAL replacement, the 1987-88 2.8L Speed Density Driveability and Emissions Manual, (form number ST399-87/88 SDM), must be used
for driveability and emissions diagnostics. To secure additional publications use order forms available to all dealers through Helm, Inc., or dial (313)
865-5000 and ask for customer service. Use 1989 model year and cartridge for scanner-type diagnosis.
WARRANTY INFORMATION
Use applicable labor operations and times.
Labor Operation Number:
Tl492 for MEM-CAL change
Labor Time:
1987-88 Cutlass Ciera
1.0 Hour
1987 Firenza
0.9 Hour
1988 Cutlass Supreme
0.8 Hour
Trouble Code:
92
If combination MAF/MAT sensor replacement is necessary, use Labor Operation Number J5670.
